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K. Praslowicz 5:21am, 3 June 2008
Did a quick scan of what I shot at the bookstore with my Graphic. Figure I'd illustrate the power of WWII technolgy for those of you among us who have only experienced digital.

For the record, this was shot with a lower quality 90mm lens that set me back $50. 90mm on this camera is the same as a 25mm on 35mm, or a 17mm on a digital camera with a 1.5 crop factor (assuming my math is right).

1) 500pixel wide web resolution jpg. How cute.
one.jpg

2) Lets crank it up a tad. 500pixel segment from an 8x10 @ 300 dpi image.
two.jpg

Looking good. But lets quit toying around and really crank it up shall we?

3) 500 pixel extraction from a 25,600 x 32,000 scan. That is 819 megapixles, or an 85x106 print at 300DPI for our viewers at home. Potentionally softer due to the five minute exposure time and me moving around the camera on unstable flooring.

three.jpg

Pretty sick eh? Sure, that much resolution is like having a car that can go 220mph that I'd never be able to use, but it sure is fun to drive at normal speeds as well.
MF Charlie Chan 10 years ago
Sick! That's all I can say. We may need to have a photoshow with all the photogs that have walked through the building, would you be down for that?
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Hambone Lewinski 10 years ago
...For those who don't know, a single 4x5 sheet is roughly the same surface area as 1/4 of a 36 exposure roll of 35mm. A medium format 6x9 negative is roughly 1/8 of a roll of 35mm film.

Jason
admin
You should do a photo show of this Jimi. I would love to see them all hanging in a show.
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N. Lindstrom Photo 10 years ago
I would do it.
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Hambone Lewinski 10 years ago
I'd be game for it, too.

Jason
admin
I would be interested too, assuming i can get there before everything is gone!
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JustinSinks Posted 10 years ago. Edited by JustinSinks (admin) 10 years ago
Ok, maybe im wrong, but the crop factor makes the mm "longer" on a digi. a wide lens on a 35mm camera would be normal on a digi, and a large zoom lens would be even more zoomier on a digi.
If not, please skool me ;)
Oh, and by the way, thats pretty rad!

edit
by my math, a 25mm on a 35mm camera would be about 37mm on my canon 30d.
Or am i missing something?
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K. Praslowicz 10 years ago
I think you're just going the wrong way on the math. Unless your 30d sensoris larger then a 35mm neg.
admin
K. Praslowicz 10 years ago
To visual better:

35mm is smaller then 4x5, and requires a shorter focal length to match the coverage.
Therfore, a digital with a sensor smaller then 35mm would likewise require a shorter focal length. to match the coverage.
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Hambone Lewinski 10 years ago
Here's another way of saying it:

The larger the area of your photosensitive media (i.e. 4x5 film is bigger than 120 film is bigger than 35mm film is bigger than most DSLR sensors) the larger your "normal" focal length is.

(For the pedantic, this isn't universally true, because you can cheat by moving the focal plane. That's why you can have 24mm "full frame" sensors)

Jason
admin
JustinSinks 10 years ago
Oh, yeah I was going the wrong way with the math. I see now. My simple mind takes a while to catch up.
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maxcaven 10 years ago
I thought the same thing for a bit shark buddy, happens to the best of us ha.
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