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Do you think the SD1 comes close to 4X5 ?

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TRIODEROB

TRIODEROB

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found some old dusty 4x5 positives I shot 20 years ago

ran them thru the scanner

if the SD1 can do this I am ready to make a purchase















 
I said that the slides were "old and dusty "

I thought you guys could look past that and look at the image ..........jeez
 
to answer your question

it´s not close to 4x5, nor even to 6x8 because of the mediocre lenses and problems with the stacked layers on the sensors borders.
 
What is this "problems with the stacked layers on the sensors borders ??
Col
 
In the first place, you cant judge anything when it is downsized to such an extent as yoiu have done. I am sure you well know that if you are just doing web images, you are wasting your time using a 4x5. At the size you posted, they will look no better than those form a point and shoot.

So if you are talking about prints then I would say how large do you print with your 4x5? And if you want an answer, you can get on the print list and see 30x48 that should tell you purely from a print standpoint whether the camera would meet your standards.

R

--
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TRIODEROB said:
I said that the slides were "old and dusty "

I thought you guys could look past that and look at the image ..........jeez
Click to expand...
The great thing about large format film is the gradation. I don't think a computer monitor can show this.

In digital cameras, gradation improves as the number of pixels goes up, just like using larger film. I think you would have to look at big prints to be certain of how good the gradation is from an SD1.

BobNL's studio shots of dancers look very promising - but I have only seen them on screen.

I notice burned out highlights on your 5x4 pictures. Is this on the original, or from the scanner? I find on my Epson 750 it is best to turn off ALL corrections in the software, so you get something like a RAW file. (There is a "No color correction" button under Configuration). In its default settings, the scanner does burn out highlights.

A good scan from 5x4 will be a 100Meg or 150Meg file. This is bigger than a TIFF from an SD1.
 
"An iphone can beat a 4 x 5 view camera"

is this a joke ???

not even in the same world my friend
 
TRIODEROB said:
"An iphone can beat a 4 x 5 view camera"

is this a joke ???

not even in the same world my friend
Click to expand...
I think he said an iPhone could beat your scans as presented, not 5x4 cameras in general. It seems likely that the originals had higher resolution, unless you were using an ancient lens.

But the advantage of large film sizes is gradation and subtlety of tone, rather than high resolution. I think the waterlilies photo does show this.

The one of the domed building was upside-down in the scanner. Maybe they all were.
 
this was my first try at scanning so I still dont know what I am doing, but I can see what I dont like in most digital - and that is the way the tones of color get washed together.

maybe thats why folks like foveon because it has more depth to the tones of color

I see it again on this scan

keep in mind that I down scaled the original from a 300 MP file !



 
Thats why i am investing in an rz67-system. will then use 70mm x-100 films by agfa.

Plustek opticfilm 120-scanner(up to 612) is being produced. Can even prefog film the get HDR-look. Most probably outresolves any SD1-lens-combination. No more of all the problems discussed here. An fearing data-loss etc.

There are chinese 6x12 and bigger cams and 4x5 gaorsi not so expensive to take up backs. ok no 5 inch-film-backs are available. one could stitch 6x12 verticals.
No slow shooting and not lightweight.

Have seen poster of the landscape-super-megapixel-cam. boring, why? such a weight cannot be carried/driven to most interesting locations.

Will wait for DPxMs first an hope for mirrorless Sigma to attach my zeiss.

Will not give up DP1M-idea but not as an all-purpose-cam.
Waiting for Focus-confirm-m42-adapter/maybe split-screen.
rainbyrd said:
to answer your question

it´s not close to 4x5, nor even to 6x8 because of the mediocre lenses and problems with the stacked layers on the sensors borders.
Click to expand...
--
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Thats why multimillionair-art-photographer andreas gursky is still using 4x5 as his main instrument for his superposters 200 x 300cm, also multiples of it. he is also using hassi-digital to add elements. Maybe uses also mamiya rz67 to replace unsharp tiny elements on his aerials.I am reffering to Bond-islands sailships.
I have seen large hassi-aerials. maybe gyroscope should have been used.
maybe newest 80g-cam can outresolve 4x5.
There is a german aerial photographer using only hassi-digital.

I have seen a lot of crap produced by famous photographers, printed in succesful books.

Crap in terms of optical/resolution-quality. Lets hope newest cams can do a lot better.

I have informations by a person having see impressive SD1-shots(resolution) shown onscreen of a laptop. Las vegas-shot by kendall has proven me about its potential.

I am still waiting for a precise resolution-test, shots from top showing buildings. camera rotated to show same part in different areas of the image. corners, center etc.
--
http://www.stereopan.org
 
In terms of sharpness, absolutely. In terms of resolution with the right film, no. The resolution on the SD1 is quite sufficient to make beautiful A0 prints which stand up to close inspection. The only problem I've seen is with some lenses the periphery might be slightly soft and with other lenses there is some CA in the periphery.

The CA can easily be corrected, and the latest version of DXO Optics Pro has the ability to correct slight softness or out of focus in the periphery of an image. I have not tried it with an SD1 image (it doesn't yet convert SD1 images) but I "think" it can be used on post conversion tiff, jpg, etc. I will investigate that further.

There is always a trade-off when switching from film to digital or vice versa. Each comes with its own set of advantages and disadvantages. Overall, unless you are cropping super tight, you will probably get equal or better printed results from the SD1. The problems of "dust" - having to first scan to preview for large prints, and other issues beyond the control of most photographers favors the SD1 in the majority of cases. Expose to the right, take care in processing and the SD1 images in decent light are outstanding as I see it. I've not had much experience "using" the SD1, but I trust the opinion of those whom I know who have and were I able to purchase one, I would do so tomorrow!

Best regards,

LIn
--
learntomakeslidshows.net
 
TRIODEROB said:
this was my first try at scanning so I still dont know what I am doing, but I can see what I dont like in most digital - and that is the way the tones of color get washed together.
Click to expand...
Scanners are generally bayer also!!
TRIODEROB said:
maybe thats why folks like foveon because it has more depth to the tones of color

I see it again on this scan

keep in mind that I down scaled the original from a 300 MP file !
Click to expand...
That's the thing though, for the images as presented at the size you gave us - I feel I could take an iPhone 4s and produce images of equal quality.

We'd need to see that 300MP file... even then we'd just be saying that something could or could not equal the combination of your film and that scanner.

--
---> Kendall
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http://www.pbase.com/kgelner
http://www.pbase.com/sigmadslr/user_home
 
I agree that at the resolution you posted most any digital camera can match it.

As a SD1 owner I have not seen anything that indicates any sort of problem with layer stacking alignment, which would be most likely in the image corners only. If you want a chip to work at all, you will avoid these problems right at the beginning. Besides, the three layers are pretty thin (less than 10 microns at the most but I am just guessing). Most of the corner problems I have seen are entirely due to the lenses I've been using. I'm seeing a slight background texturing on my SD1 when I push the contrast and color, however. Not a show-stopper in my opinion.

The Canon 5D III does automatic lens abberation correction, from what I have heard. You might be happier with this sort of high-tech processing. You won't get the nice clean 100% foveon crops with a 5DIII. But with the SD1, you will see all the shortcomings of whatever lens you use.

Here is one of my favorite 100% crops. It shows the background texturing though. Click on "original" to see it at 100%. On this shot I was using an APO 70-200mm F2.8 EX DG OS HSM set to 91mm. Very clear but you see all the thermals in this long view of the Lincoln Monument. It's a really nice lens by the way.





--
Tom Schum
 
3dreal said:
Thats why i am investing in an rz67-system. will then use 70mm x-100 films by agfa.
Click to expand...
No, Mr. Przewrocki, you're not "investing" in any such thing.

You've been talking about what camera you're going to buy for twelve years, and six dpReview accounts (przewrocki, europanorama, michael przewrocki, michael przewrocki, michel przewrocki, 3dreal) and you have yet to buy anything.

And I doubt you ever will.
3dreal said:
Plustek opticfilm 120-scanner(up to 612) is being produced. Can even prefog film the get HDR-look. Most probably outresolves any SD1-lens-combination. No more of all the problems discussed here. An fearing data-loss etc.

There are chinese 6x12 and bigger cams and 4x5 gaorsi not so expensive to take up backs. ok no 5 inch-film-backs are available. one could stitch 6x12 verticals.
No slow shooting and not lightweight.

Have seen poster of the landscape-super-megapixel-cam. boring, why? such a weight cannot be carried/driven to most interesting locations.

Will wait
Click to expand...
And wait, and wait, and wait.

--
Rahon Klavanian 1912-2008.

Armenian genocide survivor, amazing cook, scrabble master, and loving grandmother. You will be missed.

Ciao! Joseph

http://www.swissarmyfork.com
 
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