Comments on: Sony A850, A900 & Canon 5D Mark II ISO Comparisons

By: Miguel

Miguel — Fri, 14 Jan 2011 01:29:34 +0000

But you test the Sony 50mm 1.4 on the fullframe. But this lense is not made for this fullframe body. Sony doesnt have a 50mm yet to get the best possible options. I belive if you take a Zeiss 85mm on the 850 I am sure the pictures would be different.

By: Chris

Chris — Sat, 16 Oct 2010 22:06:21 +0000

i have my 7D n alpha 550, and i compare both preciosly…, with speed aperture and same iso… n many conditions.. low light normal n highlight.. some shots on people, macro, n landscape shot… every detail i had compared 7D with my cheap alpha 550 sony, and the fact is 550 have little bit more than 7D, and noise of iso effect much less than 7D, so.., what that’s compare mean???

but honestly i had not tried alpha 850 n 900…
i thinks alpha850 n 900 have a higher class than 550..

so … please give the truth comparing result brother..
don’t fake many people about this result… its SIN!!

By: Sam Wang

Sam Wang — Fri, 01 Oct 2010 16:15:06 +0000

I really relied on your nice work here to inform me about Sony A850. I now have a Sony A850. But it gives me noticeable noises even at ISO 100. Is there something wrong with my copy? Should I return it for repair? I need to find a base line or reference point to judge whether mine is out of the standard.
How were the objects in your picture lit? 15s shutter speed at ISO100 with f8 seems pretty dark. I cannot imagine my A850 perform anywhere near your pictures show at any ISO. Please help.

By: John

John — Sat, 07 Aug 2010 18:41:13 +0000

Two comments:
1) If you want to do ISO comparisons you should include the class leader ie Nikon D700….. Just call your website Canon R us.

2) Comparing camera produced jpegs with NR and everything else swithced off is a pointless exercise. You need to be comparing RAW converted images.

By: Stve

Stve — Tue, 05 Jan 2010 12:18:07 +0000

I would have liked to have seen a Raw photo at ISO 3200 from the Sony processed in Lightroom with no noise reduction & then treated in Photoshop with a good noise reduction plugin. If you can get good results with a plugin in Photoshop or direct from Lightroom 3 or another raw converter
that is what really counts not the poor Jpeg conversions Sony provide in camera.

I enjoyed looking at http://markjrebilas.com/blog/?p=6975 the quality at ISO 5000 with the Nikon D700 is amazing & now there’s the D3s that can go maybe 2 stops faster.

By: Russ

Russ — Sat, 02 Jan 2010 16:14:10 +0000

I would like to see an ISO comparison between all four cameras using DxO Optics Pro Elite to suppress noise in the RAW image files. My own experience with DxO suggests that it is possible to obtain low-noise images at ISO 3200 with the A900. How do the Canon 5D Mark II and 7D compare to the Sony A850 and A900 under these conditions?

By: Eric

Eric — Mon, 14 Dec 2009 17:27:57 +0000

@alex – I really like the A850 and think it would be a great, cost-conscious choice. I wouldn’t have any problems using some of the better lenses from Sigma and Tamron. You have to start building a kit somewhere and I think the A850 body would be a great place to start.

By: alex

alex — Mon, 14 Dec 2009 10:04:48 +0000

I’m considering getting an a850 but wonder if I could use other full frame lenses that have gotten great reviews, like SIGMA or TAMRON which are cheaper too, without affecting the camera’s capabilities, since we all know one lens won’t do and there are plenty other things to get when you are starting but still want great results.

Any suggestions for this serious amateur but still financially concious?

By: Andrea

Andrea — Thu, 19 Nov 2009 13:08:07 +0000

Thanks for the test you did, as I am also deciding between those two.
But you test the Sony 50mm 1.4 on the fullframe. But this lense is not made for this fullframe body. Sony doesnt have a 50mm yet to get the best possible options. I belive if you take a Zeiss 85mm on the 850 I am sure the pictures would be different.

By: juancarlosvasquez

juancarlosvasquez — Mon, 16 Nov 2009 17:50:36 +0000

i will apreciate your help, this week i have to choose between sony a900 or a850 and ths canon 5d, help me thankss i need your feedback to take the best decision