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OK, which is the Full-Sized Sensor?
Just for fun... Specs: One 7D. One 5DMarkIII. 24-70L at 60mm for both. ISO 400, F2.8, 100/sec on both. Processed in LR. Mark III cropped to the same perspective/magnification as 7D. Vote for which is the full framed image in responses. "A":  "B":  [EDIT] I made an effort to match tonality, contrast, brightness, etc. with very slight adjustments in LR. As a point of interest, if you drop the blacks on the Mark III, the color/contrast looks pretty close to the 7D. The slight brightness differences, were there in the originals (but I did bump up the exposure a bit on both). Also, next time, I'll also crop in camera to show the difference. Nov 13 12 01:07 am Link I'll vote for B to be the full-frame image. Nov 13 12 02:04 am Link "cropped to the same perspective/magnification" and shrunk to web size, so they should be identical? B looks a bit brighter tho. Nov 13 12 02:14 am Link A=5D3 B=7D Full Frame has greater DOF than cropped, using the same lens and set up. . Nov 13 12 02:18 am Link A is full frame. I'm glad you did this. Nov 13 12 02:21 am Link What I do notice is the huge difference in colour and contrast. A is more 'colourful' and is much more 'contrasty' compared to B. Nov 13 12 02:33 am Link Raoul Isidro Images wrote: But he said the FF shot is cropped so DOF should be the same! Nov 13 12 02:40 am Link Drew Smith Photography wrote: Well, that could be my fault. I adjusted one to match the other to really show the depth of field, etc. without the giveaway of the color/contrast/saturation between the two sensors. Nov 13 12 02:43 am Link I'm saying B is Full Frame Nov 13 12 02:53 am Link A full frame cropped to the same size as a "crop" sensor then resampled to the same size will give identical results as far as DOF etc. are concerned. Contrast and saturation differences are consequences of processing. It should not be possible to tell the difference. Nov 13 12 02:59 am Link j3_photo wrote: Yup. Nov 13 12 02:59 am Link I would say A is the 7D and B is the 5D mark iii Nov 13 12 05:19 am Link So far, the votes are: "A" has 2, "B" has 4, for full frame. Kinda had to put it down, 'cause some votes is a changin'.  Nov 13 12 05:24 am Link off hand guess upon initial view: b is full frame, a is crop body. i'm probably wrong, but hey why not  Nov 13 12 06:32 am Link B Nov 13 12 06:36 am Link In PS I'd see a bigger difference than on a web browser. A has some contouring around transitions so that is unusual for a 5D. Thus I'd say A is the 7D, B is the 5D Nov 13 12 06:38 am Link I have B as full frame. Nov 13 12 06:43 am Link OK up to: A=2 B=8 votes. Nov 13 12 06:49 am Link Raoul Isidro Images wrote: DOF is either shallow or deep, not greater or lesser. Nov 13 12 06:58 am Link I vote B. Nov 13 12 07:03 am Link Josh Yu Photography wrote: The image is cropped in post, it shouldn't have any bearing on the depth of field Nov 13 12 08:17 am Link everything looks good on a computer screen at low res  Nov 13 12 08:22 am Link isn't sensor quality more important than sensor size? Nov 13 12 08:24 am Link the 5d is obviously the full frame sensor and yes only pixel peepers can tell the difference so when magazines finally realize that we can submit 500dpi+ photos to them.... No there is no difference at all. www.SungoddessStudios.com Nov 13 12 08:26 am Link Repeat the test at ISO 6400 Nov 13 12 08:28 am Link B = full frame Nov 13 12 08:33 am Link I say B, just cause the way the chairs look in the back. Nov 13 12 08:40 am Link I think B is the full frame. Nov 13 12 08:51 am Link for identical distance and identical aperture, there is no difference in dof. however, the magnification of the image is different. look at the edge blur of the two images. the first, sample a, has smoother and smaller blur - that's the large sensor with less enlargement. sample b has rough, larger blur diameter, the result of enlarging the compressed pixels. look at the difference in the headlights blur of the toy truck. larger format always means smoother tones. enlargement was always the killer for small format quality. Nov 13 12 08:53 am Link I am now starting to doubt my answer. I find the DOF a tad bit deeper in image A. I assumed the cropped sensor provided a deeper DOF based on the relationship of the smaller sensor for a given F stop, and the full frame sensor provided a shallower DOF for the same F stop. For kicks I used a Depth of Field calculator at 60mm, f2.8 at a subject distance of 6 feet. Total depth for the 7D would be 4 inches. Total depth for the 5D would be 6 inches. So now I am indeed intrigued as to the answer. Any timeframe when you plan on revealing it? Nov 13 12 08:59 am Link Robert Jewett wrote: I don't think that's really a fair assessment since you are basically evening out the playing field for the two cameras. You should A Nov 13 12 09:03 am Link Image Magik wrote: You must have missed the thread(s) this week where people were saying they could ALWAYS tell, even if it's cropped. Nov 13 12 09:18 am Link Robert Jewett wrote: Well you didn't mention that in your post:-) Nov 13 12 09:21 am Link Another voter for B being the FF photo. Nov 13 12 09:21 am Link Image Magik wrote:
Nov 13 12 09:31 am Link This would be an epic  if both were shot with the same camera lol I'll guess B for fullframe just for the slightly better tonal range. But crop sensor should be slightly sharper, which B is also. tough call. You should load the same camera profile on both cameras and show the out of camera results just to see, but this is a good test. vote B for fullframe Nov 13 12 09:32 am Link Yingwah Productions wrote: I was so tempted to do that...but I figured someone would really not think it funny. LOL. Nov 13 12 09:33 am Link I'll play: "B" is full frame Nov 13 12 09:41 am Link "A" Nov 13 12 09:43 am Link I think A is the full frame. Nov 13 12 09:48 am Link |
not make any changes to either photo and B
