This topic is in the 2009 archive. You can read it and like its posts here. It is read only.
Archive 2009Canon EOS 7D Master thread
p.47 #1Canon EOS 7D Master thread
skibum5 wrote:
What's wrong with a higher pixel count?instead of upping the pixel count work on the internal processesing ie,new digic chips or a multicore digic chip and more onboard memory this is what shold be the focus since 12-21 mp is enough for FFI don't think 21 MP is enough for ever and ever, and I'm not alone. But for a hi rez camera, I could live with a slow framerate.
With the 7D, we got both increased resolution and speed. The same could happen with a 3D (dual digic V), but we could also see a fast, lo-rez 3D plus a slow hi-rez 5DIII.why not a fast high-res 3D and a slow crazy hi-res 5D3? 
Sign me up for the 5D3 then!
alundeb wrote
digitalbug30d wrote
brainiac wrote
AaronNegro wrote
I hope the 3D is the same as 7D with FF and same Pixel count.With the 7D, we got both increased resolution and speed. The same could happen with a 3D (dual digic V), but we could also see a fast, lo-rez 3D plus a slow hi-rez 5DIII.
Sign me up for the 5D3 then!
Sep 13, 2009 at 01:10 AM
p.47 #2Canon EOS 7D Master thread
alundeb wrote:
What's wrong with a higher pixel count?instead of upping the pixel count work on the internal processesing ie,new digic chips or a multicore digic chip and more onboard memory this is what shold be the focus since 12-21 mp is enough for FFI don't think 21 MP is enough for ever and ever, and I'm not alone. But for a hi rez camera, I could live with a slow framerate.
With the 7D, we got both increased resolution and speed. The same could happen with a 3D (dual digic V), but we could also see a fast, lo-rez 3D plus a slow hi-rez 5DIII.why not a fast high-res 3D and a slow crazy hi-res 5D3? Sign me up for the 5D3 then!
fine with me, i'll take the first copy of the 3D
skibum5 wrote
alundeb wrote
digitalbug30d wrote
brainiac wrote
AaronNegro wrote
I hope the 3D is the same as 7D with FF and same Pixel count.With the 7D, we got both increased resolution and speed. The same could happen with a 3D (dual digic V), but we could also see a fast, lo-rez 3D plus a slow hi-rez 5DIII.
fine with me, i'll take the first copy of the 3D
Sep 13, 2009 at 01:18 AM
p.47 #3Canon EOS 7D Master thread
dave chilvers wrote:
You notice that Canon has dropped the pixels down to 10million on the G11.
That's different. Going beynd 10MP on a 1/1.7" sensor sends you into diffraction territory already from f/2.8.
You notice that Canon has dropped the pixels down to 10million on the G11.
That's different. Going beynd 10MP on a 1/1.7" sensor sends you into diffraction territory already from f/2.8.
Sep 13, 2009 at 01:19 AM
p.47 #5Canon EOS 7D Master thread
I guess i'll be buying some new 1.5TB drives... We're are getting to the point where the RAW files will be as big as yesterday's tif files
Sep 13, 2009 at 06:13 AM
p.47 #6Canon EOS 7D Master thread
Some sample photos at different ISO settings. I think that it looks very good:
http://reviews.photographyreview.com/blog/canon-eos-7d-studio-sample-photos/
http://reviews.photographyreview.com/blog/canon-eos-7d-studio-sample-photos/
Sep 13, 2009 at 06:18 AM
p.47 #7Canon EOS 7D Master thread
Some nice videos ...not my videos though...
There are some more on the rightside list.
There are some more on the rightside list.
Sep 13, 2009 at 08:13 AM
p.47 #8Canon EOS 7D Master thread
alundeb wrote:
That's different. Going beynd 10MP on a 1/1.7" sensor sends you into diffraction territory already from f/2.8.
But keep in mind that f/2.8 on a compact camera has roughly the same DoF as f/11 on an SLR. f/2.8 on a compact camera is useful for a lot more types of photography than f/2.8 on an SLR. You can use f/2.8 for landscapes, architecture, and macro on a compact, for example.
I haven't done the math yet... but the small pixels on an 18 MP APS-C sensor will probably exhibit diffraction effects around f/6.3 or f/5.6. That comes way too early for an SLR, especially if you're looking to maximize depth of field. Landscape photographers typically shoot f/8 to f/11 on APS-C... and that's definitely far beyond the safe zone of an EOS 7D. In fact, I would seriously doubt the EOS 7D will resolve any more detail than a 450D at f/11. Same problem exists for architectural or macro photography.
The only way to see the benefits of an 18 MP APS-C sensor is by shooting at larger apertures (with exceptional lenses that look great at those apertures). A sports or wildlife photographer would enjoy using the 7D with a 400 f2.8 lens. But a macro or landscape photographer will rarely see much difference in resolution between a 7D and a 450D --- not at the apertures they're typically using.
dave chilvers wrote
You notice that Canon has dropped the pixels down to 10million on the G11.But keep in mind that f/2.8 on a compact camera has roughly the same DoF as f/11 on an SLR. f/2.8 on a compact camera is useful for a lot more types of photography than f/2.8 on an SLR. You can use f/2.8 for landscapes, architecture, and macro on a compact, for example.
I haven't done the math yet... but the small pixels on an 18 MP APS-C sensor will probably exhibit diffraction effects around f/6.3 or f/5.6. That comes way too early for an SLR, especially if you're looking to maximize depth of field. Landscape photographers typically shoot f/8 to f/11 on APS-C... and that's definitely far beyond the safe zone of an EOS 7D. In fact, I would seriously doubt the EOS 7D will resolve any more detail than a 450D at f/11. Same problem exists for architectural or macro photography.
The only way to see the benefits of an 18 MP APS-C sensor is by shooting at larger apertures (with exceptional lenses that look great at those apertures). A sports or wildlife photographer would enjoy using the 7D with a 400 f2.8 lens. But a macro or landscape photographer will rarely see much difference in resolution between a 7D and a 450D --- not at the apertures they're typically using.
Sep 13, 2009 at 09:28 AM
p.47 #9Canon EOS 7D Master thread
Is there only +/-2 stops of exposure compensation still with the 7D?
Sep 13, 2009 at 09:46 AM
p.47 #10Canon EOS 7D Master thread
This has been discussed by our friends from the dark side in a poorly titled thread btw : https://www.fredmiranda.com/forum/topic/809446 (go to page 8 for the discussion about diffraction). Enjoy 
Sep 13, 2009 at 09:48 AM
p.47 #11Canon EOS 7D Master thread
Beni wrote:
Is there only +/-2 stops of exposure compensation still with the 7D?
+/-3 stops.
Is there only +/-2 stops of exposure compensation still with the 7D?
+/-3 stops.
Sep 13, 2009 at 09:48 AM
p.47 #12Canon EOS 7D Master thread
No, it is ±3 as is the metering. See page 19 in the manual. The display looks very cramped.
EBH
EBH
Sep 13, 2009 at 09:49 AM
p.47 #13Canon EOS 7D Master thread
Fred Relaix wrote:
+/-3 stops.
I thought it was +/-5
From Canon:
Manual: ±5 stops in 1/3- or 1/2-stop increments (AEB ±3 stops)
* Indicated up to ±3 stops on the LCD panel and in the viewfinder.
Beni wrote
Is there only +/-2 stops of exposure compensation still with the 7D?I thought it was +/-5
From Canon:
Manual: ±5 stops in 1/3- or 1/2-stop increments (AEB ±3 stops)
* Indicated up to ±3 stops on the LCD panel and in the viewfinder.
Sep 13, 2009 at 10:07 AM
p.47 #14Canon EOS 7D Master thread
Fred Relaix wrote:
This has been discussed by our friends from the dark side in a poorly titled thread btw : https://www.fredmiranda.com/forum/topic/809446 (go to page 8 for the discussion about diffraction). Enjoy
Good thread, especially p. 9 with the examples there. I think a 18MP will always resolve more details than a 10-12-15MP at ANY aperture, not matter what diffraction limit tells us.
see also
http://www.bobatkins.com/photography/digital/canon_eos_50D_review_4.html
for an excellent example of how the 50D (which is not considered a super sharp camera by a lot of shooter) outresolve the 40D even at f22!
This has been discussed by our friends from the dark side in a poorly titled thread btw : https://www.fredmiranda.com/forum/topic/809446 (go to page 8 for the discussion about diffraction). Enjoy
Good thread, especially p. 9 with the examples there. I think a 18MP will always resolve more details than a 10-12-15MP at ANY aperture, not matter what diffraction limit tells us.
see also
http://www.bobatkins.com/photography/digital/canon_eos_50D_review_4.html
for an excellent example of how the 50D (which is not considered a super sharp camera by a lot of shooter) outresolve the 40D even at f22!
Sep 13, 2009 at 10:27 AM
brainiac
Offline
[X]
Details
p.47 #15Canon EOS 7D Master thread
stargazer78 wrote:
Landscape photographers typically shoot f/8 to f/11 on APS-C... and that's definitely far beyond the safe zone of an EOS 7D.
I never understand why people talk as though diffraction will make your camera explode. There is nothing dangerous about a little bit of diffraction. You may have to increase your sharpening level from 3/10 to 4/10 though. Otherwise it's business as usual. Failing to achieve maximum attainable contrast between adjacent pixels is not a crime.
Landscape photographers typically shoot f/8 to f/11 on APS-C... and that's definitely far beyond the safe zone of an EOS 7D.
I never understand why people talk as though diffraction will make your camera explode. There is nothing dangerous about a little bit of diffraction. You may have to increase your sharpening level from 3/10 to 4/10 though. Otherwise it's business as usual. Failing to achieve maximum attainable contrast between adjacent pixels is not a crime.
Sep 13, 2009 at 11:55 AM
p.47 #16Canon EOS 7D Master thread
I have to admit this is all very interesting and educational. So different from when I packed around a 4X5 view or walked with my 6X7. I have to admit I like the way digital is finally heading. I do wish reds would look more natural but it may be the processing but I think the Canon sensor seems to have had a bit more difficulty with it.
Sep 13, 2009 at 12:30 PM
p.47 #17Canon EOS 7D Master thread
Pixel Perfect wrote:
http://www.naturfokus.info/EN/
Thanks for Posting, images posted are pretty impressive at the lower ISO setting used! He really likes the AF system! I have mine on pre-order, cannot wait to get it.
Tim
http://www.naturfokus.info/EN/
Thanks for Posting, images posted are pretty impressive at the lower ISO setting used! He really likes the AF system! I have mine on pre-order, cannot wait to get it
.Tim
Sep 13, 2009 at 12:34 PM
p.47 #18Canon EOS 7D Master thread
This is what Ole said...not me OK ?
"It´s true what you say about problems with AF on the Mark III cameras with very bright backgrounds. I only had the 7D camera available for testing for 4 hours and didn´t got the opportunity to test it in all different situations, but my experience so far is that the 7D AF-system is better than the Mark III…"
"To be honest, I don´t care if the camera has a 1,3 or 1,6 crop-factor. The image quality is the most important think for me, and after that AF-system and durability. It seems to me that the Canon 1D Mark III has better shutter system and should also still be more rugged, but the different is not that big!
The battery capacity of the Canon 5D Mark II impressed me a lot on Svalbard this winter with -30 C and and really bad weather. I think I had to charge the battery only one time during the whole week. Maybe the Mark III battery capacity still is better, but I don´t think the difference is so big. I use both the Canon 1DS Mark III and 5D Mark II on assignments and expeditions, so I have some experience with the battery capacities of these cameras in the field.
In my case, I have already sold my 1D Mark III, and will replace it with 7D very soon… Hopefully there will be a 1D Mark IV soon, but in the meantime I will use the 7D (and 1DS Mark III) for action photography.."
"It´s true what you say about problems with AF on the Mark III cameras with very bright backgrounds. I only had the 7D camera available for testing for 4 hours and didn´t got the opportunity to test it in all different situations, but my experience so far is that the 7D AF-system is better than the Mark III…"
"To be honest, I don´t care if the camera has a 1,3 or 1,6 crop-factor. The image quality is the most important think for me, and after that AF-system and durability. It seems to me that the Canon 1D Mark III has better shutter system and should also still be more rugged, but the different is not that big!
The battery capacity of the Canon 5D Mark II impressed me a lot on Svalbard this winter with -30 C and and really bad weather. I think I had to charge the battery only one time during the whole week. Maybe the Mark III battery capacity still is better, but I don´t think the difference is so big. I use both the Canon 1DS Mark III and 5D Mark II on assignments and expeditions, so I have some experience with the battery capacities of these cameras in the field.
In my case, I have already sold my 1D Mark III, and will replace it with 7D very soon… Hopefully there will be a 1D Mark IV soon, but in the meantime I will use the 7D (and 1DS Mark III) for action photography.."
Sep 13, 2009 at 12:52 PM
p.47 #19Canon EOS 7D Master thread
I haven't read all the posts in this topic. Has anyone linked to the photo posted here by one of our own, (liquidstone)? He had access to a beta ver for 2 days. One shot posted in Nature and Wildlife with a link to more.
Ron
Ron
Sep 13, 2009 at 03:19 PM
p.47 #20Canon EOS 7D Master thread
Pixel Perfect wrote:
http://www.naturfokus.info/EN/
Review sounds impessive especially the comments on the auto focusing.
http://www.naturfokus.info/EN/
Review sounds impessive especially the comments on the auto focusing.
Sep 13, 2009 at 03:43 PM