Full Frame and 1.6 FOV comparisons

For anyone who was ever curious as to the actual visual difference between the FOV of a full frame and a 1.6crop sensor, check this out.

I got bored and took two of the same pictures with a tripod, a 5D2, a XTi, and a Sigma 50 prime.

The image in the center is the XTi, and the BW image (for visual separation) is the 5D2. There was no cropping, just resizing.

Just thought it was interesting enough to share. Don't mind clutter that is my home

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Hmm, Mike, I'm not sure what we are supposed to be seeing here -- it looks like you moved closer with the 5D2 to get the same framing, correct?

tonylong wrote in post #13504273
Hmm, Mike, I'm not sure what we are supposed to be seeing here -- it looks like you moved closer with the 5D2 to get the same framing, correct?

Nope, he took the picture from the same spot, adjusted down the resolution to get the items to the same size (on the computer screen), then overlaid the crop sensor (color) over the FF sensor (B&W). Just shows the max field of view that you would get from the same lens on a crop sensor versus a full frame when taken from the same position.

Thanks for this OP - I haven't seen an overlay like this done before - is definitely helpful.

Hmm, actually, you compressed the 5D2 image to give the same framing as the XTi image, so that you get essentially the same "field of view". That's OK except it doesn't really show the difference in field of view.

Maybe I'm missing something?

Anyway, here are two shots taken with a full-frame and a crop body, both from the same spot and with a 16mm focal length:

From a 5D "Classic":

tonylong wrote in post #13504755
Hmm, actually, you compressed the 5D2 image to give the same framing as the XTi image, so that you get essentially the same "field of view". That's OK except it doesn't really show the difference in field of view.

Maybe I'm missing something?

Anyway, here are two shots taken with a full-frame and a crop body, both from the same spot and with a 16mm focal length:

I did exactly what Pitter said. Your images show that given the same pixel sized images, the crop body appears to increase the focal length. My image simply shows the change in Field of View between the two. The BW image is from the 5D2. The overlayed color image is the narrowed FOV from the XTi taken from the same location.

Tonylong, now if you made the full frame B+W and resized the cropped shot to fit into the FF shot lining up the garage you would have the same photo style as the OP.
Id like to see the garage done like this too if you have time

Both examples are pretty neat. I'm not a fan though because it makes me want to be a 5d .

Pitter98 wrote in post #13504641
Nope, he took the picture from the same spot, adjusted down the resolution to get the items to the same size (on the computer screen), then overlaid the crop sensor (color) over the FF sensor (B&W). Just shows the max field of view that you would get from the same lens on a crop sensor versus a full frame when taken from the same position.

Thanks for this OP - I haven't seen an overlay like this done before - is definitely helpful.

kraaazymike wrote in post #13505302
I did exactly what Pitter said. Your images show that given the same pixel sized images, the crop body appears to increase the focal length. My image simply shows the change in Field of View between the two. The BW image is from the 5D2. The overlayed color image is the narrowed FOV from the XTi taken from the same location.

Ah, OK, I had to take another look at it to "get it"! I normally don't do something like that, I just post shots at my normal Web size, and they are what they are! The shots I posted clearly show the different field of view, but don't use the overlay to show the crop is really significantly smaller, hence the smaller "field of view".

team haymaker wrote in post #13505391
Tonylong, now if you made the full frame B+W and resized the cropped shot to fit into the FF shot lining up the garage you would have the same photo style as the OP.
Id like to see the garage done like this too if you have time

Heh! Well, I'll see if I want to fire up Lightroom/Photoshop for it -- 'course it should be self-evident what the result would be in fact, you could just download the two Web jegs, shrink the 30D one proportionately and convert the 5D one to B&W then overlay the 30D one, but I'll see if I can work something up and post it!

Can I make a request?

I'd like to see the same object taken by moving 1.6x closer, or further away.

This should yield the same object, but with a different perspective, correct?

OK, I don't mess around enough with Photoshop and the Background FF shot was loaded from Camera Raw as grayscale, which then made the crop overlay as grayscale. I didn't want to take the time to mess with things, but you can see the results:

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J0eybb wrote in post #13505645
Can I make a request?

I'd like to see the same object taken by moving 1.6x closer, or further away.

This should yield the same object, but with a different perspective, correct?

Might I make a suggestion...that you do your simple request, and post it. The best way to learn is by doing.

J0eybb wrote in post #13505645
Can I make a request?

I'd like to see the same object taken by moving 1.6x closer, or further away.

This should yield the same object, but with a different perspective, correct?

Sure it would have a different perspective.

Or, you could use a longer focal length from the same distance with the full frame and it would keep the perspective, although the image would have a shallower depth of field with either approach.

OK, I redid it, used a B&W Adjustment Layer in PS on the Background/FF layer so that it would play nice with the color/Crop layer!:

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Wilt wrote in post #13505677
Might I make a suggestion...that you do your simple request, and post it. The best way to learn is by doing.

I would love to, but I don't own a full frame. I guess I could zoom in 1.6x and move, but that is not technically FF vs. 1.6 Crop.