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you're crazy man. i like you, but you're crazy.
Posted 50 months ago.
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AMPhoto [deleted] says:
Genius.
Posted 50 months ago.
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that's hardcore... lol
Posted 50 months ago.
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The process looks painful - but I see the results don't look bad!
What does the 10mm EF-S become as an EF? (focal length-wise, if that makes sense)
Posted 50 months ago.
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Nice house and dogs...and oh yeah..neat trick!
Posted 50 months ago.
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@ Scubapup - lol.
That's awesome that you can do that. I've been wanting the 10-22 for a while. It seems really nice.
Posted 50 months ago.
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What does the 10mm EF-S become as an EF? (focal length-wise, if that makes sense)
On a 1.3 crop it's 13mm. The math doesn't get much easier than that. ;)
Posted 50 months ago.
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Crazy and interesting idea. How much light drop off do you see at the edges?
Posted 50 months ago.
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Nice work! How happy are you with the resulting images under close examination?
Posted 50 months ago.
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jeeeeeezzz!!! wow no gutsnoglory eh?
nice work.
Posted 50 months ago.
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Or, you use the Tokina 12-24 which can be mounted even to a 5D.
You only will have strong vignetting until about 18mm (on a 1.3crop I reckon until about 15mm)! ;-)
Posted 50 months ago.
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The 10-22 stays a 10-22 lens on the 1D. But if you want the effect of a 10mm on a 1.6 sensor you would have to set it to 13mm with the 1D.
You would need a 7.6mm lens on a 1.6 sensor camera to reproduce the 10mm photo from the 1D.
The vignetting in the extreme corners is very noticeable but still correctable with software if you accept the extra noise made visible by the brightening.
Originally posted 50 months ago.
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Andreas Helke edited this topic 50 months ago.
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Damn....cudos to the guy with the cojones big enough to take a leatherman to a nearly $700 lens....nice results as well!
Posted 50 months ago.
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hell yeah sam! i knew you would figure out a way to get around the EF-S.
hey andreas - the 1D is a 1.3 (well, 1.25) cropped sensor, you are thinking of the 1Ds which is full frame.
Posted 50 months ago.
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Don't know if I'd have had the guts to try that but that's great. Sounds like it's a tight fit with the mirror at 10mm
Posted 50 months ago.
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now that takes some guts...very cool though! LOL at the leatherman ripping apart a lens...who woulda thunk!
Were you able to get it all put back together?
Posted 50 months ago.
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Yeah, the piece pops easily back in place - it's just held in by some tabs.. So once I get my 40D back I'll likely keep the piece in the until I run into another emergency.
Originally posted 50 months ago.
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Sam Bennett edited this topic 50 months ago.
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this is some Mcguiver like idea. I would love to try this lens on my film camera.
Posted 50 months ago.
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Nice one Sam. Very interesting. Especially as the 10-22 is such a good lens.
Did you have that stiff drink before or after?
Posted 50 months ago.
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Careful with that - the 1.3x's mirror is smaller than the film mirror... you are likely to only be able to use it from 15mm or so to 22mm...
Posted 50 months ago.
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Sorry that is just way too scary for me!
Posted 50 months ago.
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nice! and pretty crazy!
Posted 50 months ago.
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If you poke around the net you'll see people using 35mm bodies with this lens, so you can do it.
Posted 50 months ago.
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very nice.. very brave. I wouldnt do this though!
Posted 50 months ago.
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thats pretty extreme
Posted 50 months ago.
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Re did the shot I did when I first got the lens and tried it with the 40D...
40D @ 10mm:

1D Mark III @ 11mm (EXIF says 10mm, but I set it more towards 10/11 - trying to not smack the mirror) - no vignetting correction:
Originally posted 50 months ago.
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Sam Bennett edited this topic 50 months ago.
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It's still wide - only way you'd get close to that with a canon lens is the 14mm for 2K
Posted 50 months ago.
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I still think your nucking futs.....
:)
Posted 50 months ago.
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@tmronin I did indeed think of the 1D but I used a wrong conversion factor. The difference between 1.3 and 1.6 crop is 1.23 and not 1.3. So the lens focal lengths would be 12.3 and 8.1 mm.
Posted 50 months ago.
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do you know if it works with the 17-55 f/2.8 too ?
Posted 50 months ago.
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balls of steel - I'm seriously impressed.
I was looking for a low cost wide option for a 5D . . .
Posted 50 months ago.
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I've used the 17-55/2.8 with this modification on my old Mark II. You can mount it, but the mirror interferes around 18mm and you see much, much more vignetting. I figured you'd see even more vignetting with this setup, so the results were pretty unexpected. This modification is much more useful.
Posted 50 months ago.
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Here's some shots with the Mark II and the 17-55, forget what focal lengths these are at, unfortunately:


I think this is 18mm...

...and this is 55mm.
Posted 50 months ago.
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FWIW, I just tried doing this with my 18-55mm f/3.5-5.6 IS and it either doesn't pop off like the 17-55 and 10-22, or I'm being too much of a pussy. ;)
Originally posted 50 months ago.
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Sam Bennett edited this topic 50 months ago.
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Pulling apart a 490GBP lens, that's brave (I gave away the kit lens that came on my 20D, perhaps I should ask for it back and see how it works on a 5D).
The images you posted look pretty good. Very impressed.
Posted 50 months ago.
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@ Sam - The vignetting in the 17-55 on the MKII lens is horrible. It looks like you did a filter in PS.
Posted 50 months ago.
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ok !
thanks for the answer Sam ;)
Posted 50 months ago.
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Hats off to you, but I'm not doing this. I'll stick with sensor cleaning. Crap, I'd probably go out and rent a 16-35mm for the day or even buy one.
Posted 50 months ago.
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Guess I'm screwed if I need to borrow any gear from you guys. LOL
Posted 50 months ago.
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"we are not worthy!"
Posted 50 months ago.
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hahaha, all youse efs lens neighbors that sam has hehe
Posted 50 months ago.
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You're like MacGuyver.
Posted 50 months ago.
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Yeah! This is the kind of thread we need more of. Not newbs who can't work out what lens they want, whinging because they can't search a forum or use Google, but real hairy-chested frontier spirit Leatherman-toting work-it-out-for-yaself stuff.
Bravo!
But yes, you are nucking futs. Does that bung go back in OK? Those electronics look scarily exposed for long term use...
Posted 50 months ago.
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Balls of steel! But I bookmarked this nonetheless, who knows, I may have to go the same route one day.
Posted 50 months ago.
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rules dyslexia!
Posted 50 months ago.
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Very useful and entertaining! Thanks for posting it.
Posted 50 months ago.
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I love it. Whatever it takes to get the job done.
See the link below. I bet this guy would wish he tried it before the dremel.
www.pbase.com/elliot/modify
Originally posted 50 months ago.
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Antoine_K edited this topic 50 months ago.
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That's complete sickness. I love how you nonchalantly plan to pop it back in when your 40D is back.
Posted 50 months ago.
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Amazing stuff! I can't believe how little vignetting there is... means the image circle cast much be a fair bit larger than it actually needs to be for the 1.6x crop cameras it's designed to fit on.
I've kinda bookmarked this by posting a link to it from the 10-22 lens group, where it'll be much easier to find again!
Posted 50 months ago.
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See the link below. I bet this guy would wish he tried it before the dremel.
www.pbase.com/elliot/modify
LOL - That's hilarious! There's really no reason to go the dremel route. The only reason you'd really want to do that - to preserve some sort of dust protection with the lens, or to limit the lens from protruding further into the cavity than it needs to, but neither are accomplished with that approach. You can see that his approach removes the portion of lens that goes from the back of the lens to the PC board.
Posted 50 months ago.
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Aha. I was wondering why there were a bunch of pictures of you tearing apart a lens in your photostream.
Posted 50 months ago.
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Sam ...........................bloody hell i have to scroll back to the top to look at your pictures and this guys to see what the differencise as said before and now
Your Nucking nuts but i am glad you did may be Canon will then start up a system where they can retrofit the .S.. lense to fit any camera just as you have done save us a packet :o)
dave
Posted 50 months ago.
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SO i just tried this on my 18-55efs kit lens that came with my rebal. (The aperture ring had locked and the lens was dead. I was keeping it around to take apart for something.) Well i placed on my digital rebal first just to make sure that it still didnt work. No luck, still broken, so out came my leatherman. Now the top part did not come off any were close to as clean as yours did. Let just say a lot of little plastic chunks. :) Well when i got done it looked nice. So i threw it on my old film body to just look around and see what it looked like. First thing i noticed was that the aperture ring was not stuck down any more. It was open. This was strange. So i tried changing the aperture and what would ya know it changed. So back to the digital rebal. Well heck it now works just great.
So long story short. Thanks for helping me fix my broken lens.
Posted 50 months ago.
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Bump for Gil, since he apparently missed this thread...
And Clayton - apparently you don't follow the maxim of "If it don't work, bang on it harder!". ;)
Originally posted 50 months ago.
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Sam Bennett edited this topic 50 months ago.
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What an experiment!
Posted 50 months ago.
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I wouldn't do this but I get vicarious thrills from looking at the pictures...
Originally posted 50 months ago.
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inate edited this topic 50 months ago.
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this is crazy!!!
but i have no reason to do it cause i only have a 30D
but someday when i upgrade to the 1D ill give it a try :)
Posted 50 months ago.
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actually sam i just found it. sam you're the best. i'm going to keep in contact with you if you don't mind. i'm going to buy and old used lens to test this out. i don't think i dare try it on my current lens.
thank you sam for posting this.
Posted 50 months ago.
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Ooh-ooh-ooooh! (you know, like Horshack).
Everyone can now go to keh and buy an inoperative EF-S from the As-Is section for cheap and hope it works by popping off the plastic thingy like Clayton.
Originally posted 50 months ago.
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Antoine_K edited this topic 50 months ago.
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How was the Autofocus? Could the body and lens focus together?
And this is crazyyy.
Posted 50 months ago.
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Autofocus is fine, not sure why you'd expect it not to work...
Posted 50 months ago.
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It sounds like mirror interfering with rear elements of of lens was a fairly gentle affair (i.e. mirror and lens come into contact, camera realises somethings up, stops trying and throws a Err99) - is that correct?
Posted 50 months ago.
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Yeah. This is just a guess, but it seems to be that the mirror only makes contact on the downswing (since you can hear the mirror reset after turning the camera off), so there isn't a lot of pressure involved. You can move the mirror with your finger pretty easily.
Originally posted 50 months ago.
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Sam Bennett edited this topic 50 months ago.
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Great work. I bet Canon are pulling out their hair knowing you can do that :)
Posted 50 months ago.
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mad as a bag of hammers! good work lad.
Posted 50 months ago.
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big cojones! nice work though
@aye_shamus - love the old school quote!
Posted 50 months ago.
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You're insane for even trying this... lol
Posted 50 months ago.
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This confuses me. If it's that easy to mod it and there's no significant light fall off, why the hell didn't they just make it an EF lens?!
Posted 50 months ago.
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Yes, iomarch has a VERY valid point. it just doesn't make sense does it!!!
Posted 50 months ago.
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You're crazy, and for that I bow down to you, lol.
The vingetting on the 17-55 is bad... however I guess if you wanted to go for a different look, without using PS, it could be pretty cool.
But, you are much braver than I am... but then I have neither the lens, nor the fancy camera body ;-)
Posted 50 months ago.
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Dude. I might have to go buy the 10-22 just to do this mod. I'd love an ultra-wide on my 1D III
Posted 50 months ago.
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any why the hell haven't you posted this in the 1D III users group!!!
Posted 50 months ago.
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that's bloody insane ! now i've got something to do with the busted 10-22mm i have in my studio (was dropped and the auto/manual focus switch no workie any more... but works manually just fine) will really want this on the 5D and 1Dm3. and yeah, like josh sez above - post this in the 1DIII group too !
Originally posted 50 months ago.
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n+s edited this topic 50 months ago.
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Amazingly I tried my Tamron 11-18 on a mark III and had all sorts of vignetting and light drop off. No mirror interference since they don't make it an F series lens but I was not too happy with the results. It was wide but the shots had to be cropped drastically to be usable.
Probably will not modify any of my lenses for now. I am more of a "bigger hammer" mechanic.
Posted 50 months ago.
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@iomarch An EF lens would have to work on full frame cameras too. The EF-S 10-22 just almost works on a 1.3 crop camera. It still has a bit too much vignetting. Vignetting is a bit of a problem of this lens even with 1.6 crop cameras.
Originally posted 50 months ago.
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Andreas Helke edited this topic 50 months ago.
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Yeah, I'm shooting with a 1D Mark III, so it's just 1.3 - and the vignetting is bad enough that I wouldn't really want to use this regularly. It's really an "in case of emergency" thing, as far as I'm concerned.
Posted 50 months ago.
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Have you used this set up since you started this thread?
Posted 50 months ago.
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some crazy shit u got going there..nice.
Posted 50 months ago.
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Sam I have to you and I really mean this
you are BY FAR the craziest hardcore photographer ( i was gonna say mofo too!) i ever encountered.
I would nver had the guts to do that in a million years, ur the man!
great pictures by the way
Posted 50 months ago.
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1.3, I see.
Heh, why's everybody sucking up to Sam?
Posted 50 months ago.
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because you gotta have balls the size of ostrich eggs to do that, would you do that to a lens of yours?
Posted 50 months ago.
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I'd consider it, especially if I was making enough money off photography to cover costs.
Posted 50 months ago.
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What a shame, I gave my brother my old 10-22 with the 30D and 17-55. I have the 17-40 though - maybe a night sortie for retrieval!
Well done - nice to see some home-spun engineering
Posted 50 months ago.
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Wow, I didn't think it was possible. Now i'm wondering if I should buy to 10-22 to try this.
Posted 50 months ago.
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dan, great minds think alike
Posted 50 months ago.
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i did it i did it !
curiousity got the best of me and i actually discovered you can pull the plastic cap out with your fingers. of course, at your own risk. slight tug and the clips popped out. wowzee, it's on the 1Dm3 right now and will be on the 5D this weekend ! This should be fun. I can report that at 10mm or all the way to the left it smacks the mirror.
Best I've found (on 1D3, 1.3 crop) to get widest possible - 11mm, right at the first 1 of 12 on the dial. this assumes no filter or hood - slim filter very slight vignetting, normal filter greater vignetting. with hood, very funky framing. will see what she's like on full frame later.
clip pops right back into place too !
Originally posted 50 months ago.
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n+s edited this topic 50 months ago.
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well if you had bought the sigma 10-20 you wouldnt have had to go to all this trouble, it goes straight on a 1d mk3 with no probs and no cut off from 13mm.
Posted 50 months ago.
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The 10-22 has no cutoff even at 10mm. But you have to avoid close focusing to stay out of the reach of the mirror.
Posted 50 months ago.
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gazza: the point was to get a canon branded efs lens on a ef body. the sigma distortion vs. the canon distortion is quite noticeable and quality is much better on canon. and it wasn't really a problem as i use(d) the 10-22 on the 20D and 40D we have. this just opens the doors of possibility a bit more.
Posted 50 months ago.
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The only bummer about this that I've found is that now when I use it on the 40D it doesn't seem wide enough! LOL
Oh well.
Here's some shots from my last Roller Derby bout, first time using it for this (on the 40D as my second camera)...


(craziest conditions I've ever shot under - crazy sunlight on one side, dark thunderstorm clouds on the other side, HID's above and a Flash on the camera... yikes!)
Posted 50 months ago.
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Awesome work on that mate!
You've made the widest full frame lens ever.
Posted 50 months ago.
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*narly [deleted] says:
Would this theoretically work for the 60mm EF-S?
Posted 50 months ago.
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@ Sam - That is crazy lighting. I've never shot anything like that before, but I get to shoot a Faculty vs. Student basketball game for my school today.....it'll be my first time shooting under HIDs.....
Posted 50 months ago.
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Sam - I wonder if you can see behind yourself with that lens??
Posted 50 months ago.
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curiousity got the best of me and i actually discovered you can pull the plastic cap out with your fingers. of course, at your own risk. slight tug and the clips popped out. wowzee, it's on the 1Dm3 right now and will be on the 5D this weekend ! .
Man, I should have kept my 10-22!! So how did this work on the 5D?
Originally posted 50 months ago.
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Michael B. edited this topic 50 months ago.
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NICE WORK !!!
Another effort:
www.bobatkins.com/photography/tutorials/efs-10d.html
Posted 50 months ago.
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I see you have an Aussie Dog.....nothing to do with the thread.Im just patriotic :)
Posted 49 months ago.
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For what it's worth, I did a lot of shooting with this set up this weekend around the grounds of the renovated cotton mill that we live in. Still really loving the setup - only really see bad vignetting when I'm around 10-12mm.
Sorry, don't know the focal lengths off the top of my head here, so you'll have to click in to see it.



Posted 49 months ago.
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omg. one needs serious balls to stick a leatherman into the lens and pop out the ring (never knew it came out like that). wow.
Posted 49 months ago.
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I do it with my finger now. ;)
Posted 49 months ago.
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