a 350 is not a fair test

Started Jun 8, 2008 | Discussions
kobi b Regular Member • Posts: 250
a 350 is not a fair test

the minolta 50mm that they tested is wors than the canon and the nikon

lenses i had the chance to review it my self vs canon 50mm and the canon turned to be much much beter. my opinion is that test shuld be made with one sort of lens somthing like sigma 50mm for all cameras, how can dp review test a camera

with complitly different lenses ,there assumption that all lenses from nikon pentax canon etc, all f1.4 are the same , thats not true, go to photozone.de and you
will see my point. what do you think ??????

kobi

lim yau tong
lim yau tong Veteran Member • Posts: 4,066
I second

Yes I totally agree with you.

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Barry Fitzgerald Forum Pro • Posts: 29,888
Re: a 350 is not a fair test

kobi b wrote:
my opinion is that test shuld be

made with one sort of lens somthing like sigma 50mm for all cameras,

Is the sigma even out for sale yet?

You suggest dp put a canon lens on an A mount body? hmmm

All these lenses are stopped down anyway, really dont see the issue.

Leaving that aside, most of the reviewers remarks had nothing to do with resolution (it scored very well), but processing.

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Graham Best Veteran Member • Posts: 3,426
Re: a 350 is not a fair test

kobi b wrote:

the minolta 50mm that they tested is wors than the canon and the nikon
lenses i had the chance to review it my self vs canon 50mm and the
canon turned to be much much beter. my opinion is that test shuld be
made with one sort of lens somthing like sigma 50mm for all cameras,
how can dp review test a camera
with complitly different lenses ,there assumption that all lenses
from nikon pentax canon etc, all f1.4 are the same , thats not true,
go to photozone.de and you
will see my point. what do you think ??????

kobi

In what way do you consider the Minolta 50mm 1.4 "wors"? This is a test of the Sony 50 f.4. It has a different coating, and is a "D" lens, but I think the optics are similar to the Minolta 1.4.

Both tests from photozone. Canon tested with 30D, Sony with A700, Nikon with D200.

Canon

Sony

Nikon

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Regards,
Graham

'I am not young enough to know everything.'
Oscar Wilde

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Erik Magnuson Forum Pro • Posts: 12,247
Slagging the Minolta 50mm

kobi b wrote:

the minolta 50mm that they tested is wors than the canon and the nikon

These lenses are old enough to have been compared at the old photodo site where they all get an identical score of 4.4:

http://old.photodo.com/prod/lens/detail/CaEF50_14USM-90.shtml
http://old.photodo.com/prod/lens/detail/MiAF50_14-387.shtml
http://old.photodo.com/prod/lens/detail/NiAF50_18-444.shtml

The Minolta may fall off some in the corners of FF, but for f/8 and APS-C there is little practical difference.

lenses i had the chance to review it my self vs canon 50mm and the
canon turned to be much much beter.

Just because you did not have a good copy doesn't invalidate the test.

there assumption that all lenses
from nikon pentax canon etc, all f1.4 are the same ,

No, the assumption is that at f/8 or f/9, the lens outresolves the sensor by enough to not matter. Most tests seem to agree on this point.

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Erik

rashkae2 Contributing Member • Posts: 750
Re: a 350 is not a fair test

kobi b wrote:

the minolta 50mm that they tested is wors than the canon and the nikon
lenses i had the chance to review it my self vs canon 50mm and the
canon turned to be much much beter. my opinion is that test shuld be
made with one sort of lens somthing like sigma 50mm for all cameras,
how can dp review test a camera
with complitly different lenses ,there assumption that all lenses
from nikon pentax canon etc, all f1.4 are the same , thats not true,
go to photozone.de and you
will see my point. what do you think ??????

kobi

What do I think? I think you need to understand lenses better before opening your mouth like that. The minolta 50mm is probably the sharpest 50mm they have. I don't know what "your review" is based on. Any proper, scientific tests? Or just 5 seconds of "shoot shoot shoot"?

They son't assume that all lenses are the same, but it's a valid assumption that at f/5.6 to f/8, the lenses will perform similarly enough and it's the camera sensor that becomes the limiter.

kodakuser Veteran Member • Posts: 6,405
Re: a 350 is not a fair test

Barry Fitzgerald wrote:

Leaving that aside, most of the reviewers remarks had nothing to do
with resolution (it scored very well), but processing.

Agreed... It is the processing that I found to be the issue

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FrodeNilsen Regular Member • Posts: 253
Flame wars

I see a lot of users who are miffed that their favorite cam was found lacking.

The latest being F9.0 and Minolta 50mm f1.4 is suddenly being inferior.

If DPR loved the A350, would these users complain that DPR did not point out the veaknesses of the A350 or that the positive result was flawed?

Frode

Barry Fitzgerald Forum Pro • Posts: 29,888
Did the op read the site..

"Please note that the tests results are not comparable across the different systems!"

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Patco Forum Pro • Posts: 15,230
Re: a 350 is not a fair test

rashkae2 wrote:

They son't assume that all lenses are the same, but it's a valid
assumption that at f/5.6 to f/8, the lenses will perform similarly
enough and it's the camera sensor that becomes the limiter.

Can't disagree that all is fair enough at those apertures.
On this page, the Sony is at f/9, while the 12mp Canon is at f/7.1:
http://www.dpreview.com/reviews/sonydslra350/page30.asp
Would diffraction play a part in limiting resolution at f/9 with a 14mp sensor?

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Patco
A photograph is more than a bunch of pixels

rashkae2 Contributing Member • Posts: 750
Re: a 350 is not a fair test

Patco wrote:

Can't disagree that all is fair enough at those apertures.
On this page, the Sony is at f/9, while the 12mp Canon is at f/7.1:
http://www.dpreview.com/reviews/sonydslra350/page30.asp
Would diffraction play a part in limiting resolution at f/9 with a
14mp sensor?

Definitely possible. The Sony resolution tapers down after f/5.6, so by f/9 it's beyond the sweet spot already.

yakkosmurf Senior Member • Posts: 2,208
Re: a 350 is not a fair test

I think you're out of arguments trying to save face for your precious camera. I agree with the other posters that the lens is not really inferior to the other ones. Also, the types of problems seen with the picture examples in the a350 review were not lens induced problems. Also, the same lens was used for the a700 review, and no one questioned the choice for that review. If the lens works well on the a700, I would think it would work just as well on the a350.

I do agree that processing could be affecting things as ACR has been shown not to do well with Sony RAW files on the new cameras. Although, that doesn't explain the poor looking camera generated jpegs at high ISO.

Basically, the lens was not the issue. The camera's performance is part of the story, and the processing could be a factor for the converted RAW files. I'm sorry if this is so hard to accept.

kobi b wrote:

the minolta 50mm that they tested is wors than the canon and the nikon
lenses i had the chance to review it my self vs canon 50mm and the
canon turned to be much much beter. my opinion is that test shuld be
made with one sort of lens somthing like sigma 50mm for all cameras,
how can dp review test a camera
with complitly different lenses ,there assumption that all lenses
from nikon pentax canon etc, all f1.4 are the same , thats not true,
go to photozone.de and you
will see my point. what do you think ??????

kobi

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Graham Best Veteran Member • Posts: 3,426
Hasselblad Jr.

If Sony had marketed this a bit differantly, I wonder what the perception would be.

I'm hoping the new full frame will be introduced at an unbelievable price, but I'm realistically expecting the price to be in the $3500 range. If so, the A350 would be a perfect companion to my A700, more so to me than a second A700.

Poor high ISO performance? So what. I'd expect a $30,000 Hasselblad to turn in similar poor high ISO images. For owners of the A350, if you're trying to shoot in low light, throw a flash on the camera. For the majority of your shots, be content that you have one of the best resolving cameras on the market, for a price they were charging for point and shoots mere months ago.

I am a licensed general contractor. I have 8 different pneumatic nailers, each perfect for the job intended. (I won't even mention the number of saws I have. ). A single tool seldom provides the best performance for all jobs. The A350 may not be the best camera on the market for everything, but for what it does well, it does very well.

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Regards,
Graham

'I am not young enough to know everything.'
Oscar Wilde

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RomeoD
RomeoD Senior Member • Posts: 1,069
Oh so true. Lenses make huge difference for any SLR.
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RomeoD

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headofdestiny Veteran Member • Posts: 9,226
Re: Hasselblad Jr.

Good point, Graham. I'm primarily a studio shooter, and I'm gonna get the full frame immediately. Maybe I should replace the A700 with the A350 as a backup? That tilt screen has a nice waist level finder vibe.

Graham Best wrote:

If Sony had marketed this a bit differantly, I wonder what the
perception would be.

I'm hoping the new full frame will be introduced at an unbelievable
price, but I'm realistically expecting the price to be in the $3500
range. If so, the A350 would be a perfect companion to my A700, more
so to me than a second A700.

Poor high ISO performance? So what. I'd expect a $30,000 Hasselblad
to turn in similar poor high ISO images. For owners of the A350, if
you're trying to shoot in low light, throw a flash on the camera. For
the majority of your shots, be content that you have one of the best
resolving cameras on the market, for a price they were charging for
point and shoots mere months ago.

I am a licensed general contractor. I have 8 different pneumatic
nailers, each perfect for the job intended. (I won't even mention the
number of saws I have. ). A single tool seldom provides the best
performance for all jobs. The A350 may not be the best camera on the
market for everything, but for what it does well, it does very well.

OP kobi b Regular Member • Posts: 250
Re: a 350 is not a fair test

hi
i dont have the a350 so im not diffending my camera , it reffers to all

camera manufacturers , lenses have meny problems some of them minor and some not [minolta 50mm suffers from flair- sony due to new front element coating reduces image contras]

this lens that dp reviewd with the a350 attached to it ,is not a great lens compare to c/n, so that is only my reason to right it, yes the a 350 is not a super budget
dslr but when the reviewers talk about details in the photo compare to.......

in my opinion its not a fair compresion. and again im not talking about menus-operation-ergonomics-etc" in the end , how wants to buy the a350 wil buy it
regarding the review after all its a good budget camera.

YGH10 Regular Member • Posts: 285
Well, then people would complain again:

"the sigma is not showing the full potential of the camera etc. etc. etc."
--
Formerly YGH.

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jim park Forum Member • Posts: 67
Re: a 350 is not a fair test

so many whiners.. sigh

minolta 50mm 1.4 is worse than Canon and Nikon counterparts? lol
If I remember correctly, popular photo magazine did a test of 12
different 50mm AF lenses of all brands and Minolta came in second.
First place was Leica 50mm I think.

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