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The real story behind the SONY ALPHA noise

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_Al

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Ok I know this has been discussed many a times over but I gotta tell you that from my observation of the Nikon d80 canon 400d and the Sony A100 Photographs

the a100 is the master of detail in this class of camera, if you think otherwise go and have a look at the canon 1DS mark II review in this website and you will see that canon have used noise reduction far more conservativly in their profesional line just like sony have on their A100 camera the camera might not have weather sealing and all metal body but the photographs are professional quality..

Also if you notice in most nikon and canon reviews including dpreview review of these cameras they are fitted with the 50mm prime lens when being reviewd however the SONY A100 does not get this treatment so its no way a fair comparison.. I say do a review of the sony A100 with the 50mm 1.4 prime lens on then you will see the true resolving power of the A100 and the benifit of the conservative NR and lets not forget if the camera decides the nr level than the detail is gone for ever but if you decide than for example in five years time software like noise ninja will have advanced so much more that the in camera NR of 2006 will be inferior when compared to software based nr of 2011 on the exact picture! The sony a100 Photographs look more tangible then the competition IMHO!
--
Sony Alpha A100
Sigma 28-70mm EX DG
Sony DT 18-70mm
Sony Hvl-F56AM

Check YoSelf Before Ya Wreck YoSelf
 
[U] Al said:
Also if you notice in most nikon and canon reviews including
dpreview review of these cameras they are fitted with the 50mm
prime lens when being reviewd however the SONY A100 does not get
this treatment so its no way a fair comparison..
Click to expand...
That's not true. From the dpreview A100 review: "For direct comparisons we always use sharp prime lenses stopped down (typically to F9). For the 'cropped' sensor cameras we used 50 mm lenses (Minolta 50 mm F1.4 for the DSLR-A100..."

see: http://www.dpreview.com/reviews/sonydslra100/page23.asp [/U]
 
I agree for the 2nd part. A prime lens beats any good zoom one. I have taken some shots using 50/1.7 on 7D as well as 30D with 24-105. The prime lens gives me much sharper image
But why does the optical resolution have anything to do with noise?
--
Mark K
http://www.pbase.com/herbridgemo
 
Whom of you realy has an Alpha?

Are your opinion based solely on the reviews or you really had the chance to be face to face with a 1600 picture from an A100? Weren't you scared?

A100's ISO 1600 has a lot of noise and a lot of details are lost with the noise reduction. ALso the colors are washed, I think due to the high level of noise reduction to croma noise.

Also on ISO 400 and 800 I can see loss of details compared to my Rebel XT.

The Rebel XT also has more dynamic range IMO.

But the A100 is still a better option for me due to the Image stabilization.
 
Mark K said:
I agree for the 2nd part. A prime lens beats any good zoom one. I
have taken some shots using 50/1.7 on 7D as well as 30D with
24-105. The prime lens gives me much sharper image
But why does the optical resolution have anything to do with noise?
--
Mark K
http://www.pbase.com/herbridgemo
Click to expand...
If you got a distorted or unsharp lens the noise blotches look bigger thats because when a face is out of focus for example it looks bigger or any subject other being photographed..
--
Sony Alpha A100
Sigma 28-70mm EX DG
Sony DT 18-70mm
Sony Hvl-F56AM

Check YoSelf Before Ya Wreck YoSelf
 
My previous camera was a compact - a DSC-V3.

It was one of the cleanest-at-higher-ISOs compacts out there, for well over a year, until the Fuji F10 came out.

Still, my Alpha 100 at ISO 1600 (effective ISO 2000) produces about as much noise as my V3 does at ISO 400 (effective 320).
(That's a six-fold gain.)

I photographed an entire concert at the Queens Hall with that camera, at ISO 400 or 800. The pictures were not perfect but they were useable with some post-processing.

You can see them here:
http://www.flickr.com/photos/two_truths/sets/72157594171768335/
http://www.flickr.com/photos/two_truths/sets/72157594170372605/

The charity, "Pass It On" were very grateful for my work - and - have asked me to photograph their future fundraisers for them.

--
Stuart / the Two Truths
http://www.flickr.com/photos/two_truths/
http://two-truths.deviantart.com/gallery/
 
I looked at the Sony because of the in camera IS but my D50 is much cleaner at high ISO so I've decided to wait.
 
If Sony made the NR processing selectable then we could have the best of both worlds. While the A100 may produce good ISO 1600 images after post-processing I think it is a mistake to REQUIRE a user to do so. Someone may be willing to trade details for lower noise. Someone else would want the other way. Since DSLRs are as much computers as cameras I would like for manufacturers to realize this - Nikon seems to be getting this.
--
KM 5D, KM 18-70, KM 28-75, KM 75-300, KM 50 1.7
 
Noise and noise reduction. With an SLR with so much detail as the a100, one should photograph with RAW and not with the jpg's coming directly out of the camera. If you test different Raw converters you get huge differences in colour, details and noise and that is on a PC!! A camera processor cannot compete with modern PC. So while developping Raw and PP choose details or noise. You can get very nice pictures with high ISO. By the way I have a a100!
 
For a short window I will have our loan test D80, my own A100, and my daughter's new 400D all side by side - though I'm off to photokina on Monday. The 400D is supposed to arrive tomorrow.

I would not swap my A100 for the D80. Wonder how the Canon will answer that possibility... not that I will have a chance, it has a home already.

And last week I had to buy another Sigma SD10. I broke our SD10 by doing a wrong procedure for sensor cleaning, and having the shutter close at 30 seconds. The rigid vacuum wand of the Green Clean kit has a kind of moulded lip (like a fly's mouthpart) and the damn thing caught the shutter as it closed - a brush or even a wipe would have caused no damage, but this is a hard plastic probe and it flicked a leaf out of place. Has to go back to Japan to be fixed.

When it comes back, we'll use one of the bodies for infra-red and mono and remove the filter.

David
 
claudio rio said:
Whom of you realy has an Alpha?
Click to expand...
Ido !
claudio rio said:
Also on ISO 400 and 800 I can see loss of details compared to my
Rebel XT.

The Rebel XT also has more dynamic range IMO.

But the A100 is still a better option for me due to the Image
stabilization.

Are your opinion based solely on the reviews or you really had the
chance to be face to face with a 1600 picture from an A100? Weren't
you scared?
Click to expand...
Yes my opinions are solely based on reviews that I do of the pictures that I take with my very OWN SONY ALPHA A100,
claudio rio said:
A100's ISO 1600 has a lot of noise and a lot of details are lost
with the noise reduction. ALso the colors are washed, I think due
to the high level of noise reduction to croma noise.
Click to expand...
If an inexperienced photographer shoots with slide film than there is a greater chance of them messing up the photograph with under or overexposure than c41 process film but the slide is better when it comes to dynamic range and resolution
--
Sony Alpha A100
Sigma 28-70mm EX DG
Sony DT 18-70mm
Sony Hvl-F56AM

Check YoSelf Before Ya Wreck YoSelf
 
claudio rio said:
Whom of you realy has an Alpha?
Click to expand...
Ido !
claudio rio said:
Also on ISO 400 and 800 I can see loss of details compared to my
Rebel XT.

The Rebel XT also has more dynamic range IMO.

But the A100 is still a better option for me due to the Image
stabilization.

Are your opinion based solely on the reviews or you really had the
chance to be face to face with a 1600 picture from an A100? Weren't
you scared?
Click to expand...
Yes my opinions are solely based on reviews that I do of the pictures that I take with my very OWN SONY ALPHA A100,
claudio rio said:
A100's ISO 1600 has a lot of noise and a lot of details are lost
with the noise reduction. ALso the colors are washed, I think due
to the high level of noise reduction to croma noise.
Click to expand...
If an inexperienced photographer shoots with slide film than there is a greater chance of them messing up the photograph with under or overexposure than c41 process film but the slide is better when it comes to dynamic range and resolution
--
Sony Alpha A100
Sigma 28-70mm EX DG
Sony DT 18-70mm
Sony Hvl-F56AM

Check YoSelf Before Ya Wreck YoSelf
--
Sony Alpha A100
Sigma 28-70mm EX DG
Sony DT 18-70mm
Sony Hvl-F56AM

Check YoSelf Before Ya Wreck YoSelf
 
Tangible
A adjective
1 real, tangible

possible to be treated as fact; "tangible evidence"; "his brief time as Prime Minister brought few real benefits to the poor"

2 physical, tangible, touchable

having substance or material existence; perceptible to the senses; "a physical manifestation"; "surrounded by tangible objects"

3 palpable, tangible

capable of being perceived by the senses or the mind; especially capable of being handled or touched or felt; "a barely palpable dust"; "felt sudden anger in a palpable wave"; "the air was warm and close--palpable as cotton"

4 tangible

perceptible by the senses especially the sense of touch; "skin with a tangible roughness"

5 tangible

(of especially business assets) having physical substance and intrinsic monetary value ; "tangible property like real estate"; "tangible assets such as machinery"

I hope this helps...

--
Sony Alpha A100
Sigma 28-70mm EX DG
Sony DT 18-70mm
Sony Hvl-F56AM

Check YoSelf Before Ya Wreck YoSelf
 
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