User avatar
stef247
Topic Author
Posts: 4
Joined: Sun Dec 18, 2005 4:37 am

Canon Eos7D RAW

Sat Jan 19, 2013 9:17 am

Hello,

Does somebody can tel me if this is a issue on the Canon 7D, if you photograph in RAW with a iso of 100 there is mutch noise on the picture.
Because I planning a new body to replace my 40D, but I'm not convinced this is the best option for me.
All helps are welcome  

thanks in advance.

Kind regards,

Stef
 
shufflemoomin
Posts: 409
Joined: Fri Jun 25, 2010 11:04 am

RE: Canon Eos7D RAW

Sat Jan 19, 2013 9:41 am

I use a 7D and an original 5D. I notice no noise issues at ISO 100 on the 7D. I'm primarily a concert photographer and happily use the 7D at 3200 & 6400. Of course you'll get some noise at those ISOs, but it's nothing lightroom or Dx0 can't sort out. ISO 100 is totally fine. You'll find the 7D an excellent step up from the 40D. It's the best cropframe Canon currently offers, in my opinion.
 
ckw
Posts: 4586
Joined: Fri Aug 27, 2010 12:26 am

RE: Canon Eos7D RAW

Sat Jan 19, 2013 10:36 am

I would say the 7D can be a bit noisy, even at 100 ISO - I found there was always some 'texture' in blue skies. Also it is very intolerant of the slightest underexposure - if you try and correct this in post, shadows get very noisy.

I found the key was to a) be very careful with exposure and b) apply a little luminance noise suppression in ACR when processing the RAWs.

Of course, the very large file also means that often you will be reducing the image in size for the final version which both reduces noise and improves sharpness.

But the 7D is a bit odd - while at 100 ISO it can't produce the silky images of an original 5D, once you go above 800 ISO it begins to show its worth. Obviously shots at 3200 & 6400 will show some noise, but until the 5D3 came along, it was probably your best bet for high ISO shooting.

You also have to look at the entire package. The AF is very good and the ergonomics were a real step forward for Canon. A real joy to use compared to the 40D or similar models.

Cheers,

Colin
Colin K. Work, Pixstel
 
Silver1SWA
Crew
Posts: 4458
Joined: Wed Mar 10, 2004 6:11 pm

RE: Canon Eos7D RAW

Sat Jan 19, 2013 5:17 pm

I agree with everything Colin said. The 7D, on the pixel peeping level will look noisy at low ISOs compared to the 40D but in the real world, it's not an issue as long as you get the exposure right. For airliners.net, you'll probably need to apply small amounts of noise reduction in LR or ACR to avoide a noise/grain rejection in the sky. My workflow involves moving the luminance slider to 15-20 as the first step for every shot taken at ISO 100-400.

If you primarily shoot aviation and don't get wildly creative with processing, the 7D is just fine. However if you also enjoy different types of photography that involve a more creative processing style like HDR or processing that involves popular filter sets from Nik software (for example), it won't take long before image quality begins to break down compared to files from some other cameras out there.
ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
 
coninpa
Posts: 251
Joined: Mon May 16, 2005 3:36 pm

RE: Canon Eos7D RAW

Sun Jan 20, 2013 10:16 pm

There is always noise in a RAW file, even at 100 ISO. It's the purpose of editing software to eliminate it properly. The built-in camera software does it for you if you shoot JPEG. I personally shoot in RAW and use Camera Raw (available in PS and Lightroom). The recent versions are really good at noise reduction without affecting too much the photo.
Patrick De Coninck
 
KFLLCFII
Posts: 3185
Joined: Sat Sep 11, 2004 7:08 am

RE: Canon Eos7D RAW

Mon Jan 21, 2013 1:59 am

Keep in mind that the individual pixel size on the 7D is actually smaller than that found on the 40D, which is what allows it to have almost twice the amount of megapixels (18.0) than the 40D (10.1) for the same physical sensor size. In other words, the 7D has a greater "pixel density", but this comes as a consequence: Each pixel (since smaller) cannot "tolerate" the same amount of light as the 40D before filling up and losing color clarity...inducing noise faster. But the impressive high-ISO capability of the 7D only goes to show it has better internal noise-handling qualities at high ISO between the sensor and the memory card...Which is not to say the raw data sent from the sensor to the internal processor may not be as impressive as that of the 40D (only the folks at Canon would know), but of course, it's what is sent to the memory card that counts for us anyway.

Here's a good read on this topic: Pixels Are Like Cupcakes. Let Me Explain.
"About the only way to look at it, just a pity you are not POTUS KFLLCFII, seems as if we would all be better off."
 
ckw
Posts: 4586
Joined: Fri Aug 27, 2010 12:26 am

RE: Canon Eos7D RAW

Mon Jan 21, 2013 9:16 am

I think Canon made a mistake with the 7D - if they'd made it, say 12mp or maybe even 15 it would have been a killer camera. Unfortunately by squeezing those extra pixels in they produced a good camera with an issue. But I guess for marketing purposes the numbers rule.

Cheers,

Colin
Colin K. Work, Pixstel
 
braby
Posts: 95
Joined: Fri Mar 09, 2007 5:05 am

RE: Canon Eos7D RAW

Mon Jan 21, 2013 9:41 am

I have a 7D and a 50D, when shooting side by side and processing for here I find that the 7D requires a little noise reduction whereas the 50 doesn't require any. However as stated in previous post's it's easy to remove, I previously used Canon's own DPP and now use Lightroom and both of these are easy enough to set up noise reduction when importing your photo's.
I think the 7D is a great camera feels so much better in my hands than any previous canon camera I have owned I have been able to use it at it's highest iso setting to get some images that otherwise would have been lost to me granted they wouldn't get on here or be published but i shoot for myself first and foremost.
 
User avatar
Dubi
Posts: 13
Joined: Fri Mar 24, 2006 8:39 pm

RE: Canon Eos7D RAW

Wed Jan 23, 2013 7:11 am

7D has noise issues. In dark areas. And if you clean noise with Photoshop etc., you must know HOW, WHERE and WHY. Best practice is to compensate for EV by +1/2 or +1 stop on the camera itself if background is the sky, before you take a photo. Then is much easier in Photoshop to compensate in minus.
BTW if at least half of scene in the viewfinder is the bright sky, and you have strong shadows then, you can always comfortably compensate for +1EV.

[Edited 2013-01-22 23:45:57]

[Edited 2013-01-22 23:55:52]

Who is online

Users browsing this forum: Clipper002 and 5 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos