Site Sponsors
Page 3 of 3 FirstFirst 1 2 3
Results 101 to 125 of 125

Thread: A900. Your Best Set Of Lenses

  1. #101
    Member
    Join Date
    Oct 2009
    Location
    Central Florida
    Posts
    99
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    I guess I must be from another planet. I use the a850 with the ZA 24-70 almost exlusively. This combination kicks the #%?! out of the 5D II and the Canon 24-105L and the 17-40L -- micro contrast, color, sharpness, linearity, CA, etc.
    Bob Rosinsky
    Lakeland, Florida
    www.topdogimaging.net

  2. #102
    memories
    Guest

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by Bill_Green View Post
    I'm pretty sure. Actually I thought is was Maxmax. Do a search on LuLa, there was a company mentioned there...
    I do not find it. Has anybody a link or name for removing the AA filter from the Sony a900/a850?

    I would be highly interested

  3. #103
    Senior Member johnnygoesdigital's Avatar
    Join Date
    Mar 2010
    Posts
    1,579
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    This is a recent ad shoot using the 24-70mm Zeiss... Although web photographs @72dpi, don't show the rich detail, this lens surprised me by how useful it is!
    Last edited by johnnygoesdigital; 9th January 2013 at 06:16.

  4. #104
    Subscriber Member kit laughlin's Avatar
    Join Date
    Nov 2007
    Location
    Two suitcases and the latest MBA
    Posts
    1,334
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Maxmax is the company; here's the LINK. Not sure that they do Sony, but they always respond quickly, so ask and 'you never know'.


    Cheers, KL

  5. #105
    Member
    Join Date
    Feb 2009
    Posts
    68
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    MaxMax doesn't list any Sony DSLR's for AA removal. This is probably due to the much smaller market share Sony holds in this segment. However, I seem to recall someone at the Dyxum forums contacting maxmax about AA removal on an A900, and they responded that it could be done, but that the process would take longer than usual.
    If you're really intent on doing this contact them, as Kit said, they respond promptly.

  6. #106
    Senior Member douglasf13's Avatar
    Join Date
    Dec 2008
    Location
    Los Angeles, California, USA
    Posts
    1,965
    Post Thanks / Like
    Images
    1

    Re: A900. Your Best Set Of Lenses

    I emailed MaxMax a long time ago, and they told me that they couldn't do Sony AA filter removal because of the way the sensor glass was epoxied onto the sensor. I don't know if that was a legitimate reason or not, though. I've seen someone remove the IR/AA filter from the NEX-5 before.

  7. #107
    Senior Member edwardkaraa's Avatar
    Join Date
    Feb 2009
    Location
    Bangkok
    Posts
    1,470
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Does removing the AA filter require any special skills that are beyond an average camera technician's abilities?
    M262 ZM 25/2.8 35/1.4 50/2 85/2

  8. #108
    Senior Member douglasf13's Avatar
    Join Date
    Dec 2008
    Location
    Los Angeles, California, USA
    Posts
    1,965
    Post Thanks / Like
    Images
    1

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by edwardkaraa View Post
    Does removing the AA filter require any special skills that are beyond an average camera technician's abilities?
    I don't think so, really. I believe the issue may be that one needs to install a plain glass cover to the sensor after the AA is removed.

  9. #109
    Senior Member edwardkaraa's Avatar
    Join Date
    Feb 2009
    Location
    Bangkok
    Posts
    1,470
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by douglasf13 View Post
    I don't think so, really. I believe the issue may be that one needs to install a plain glass cover to the sensor after the AA is removed.
    Yeah, forgot about the replacement cover. I might try to ask my local technician though. He used to be the main guy at Canon repair so he must know something about it.
    M262 ZM 25/2.8 35/1.4 50/2 85/2

  10. #110
    Senior Subscriber Member
    Join Date
    Nov 2007
    Location
    San Francisco, CA
    Posts
    1,306
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by Bill_Green View Post
    I keep threatening to send my A900 off to have the AA filter removed. Coming from a CCD camera without an AA filter, it has been a tough pill to swallow. While the A900's 25mp shames my previous camera's 10 mp, I have a hard time seeing much actual difference. Your estimation of 16 mp of actual detail seems about right.
    The AA filter definitely kills a lot of fine detail. In the end there's not much more, if any, in the files than I get with the M9. So yeah, 16MP sounds close to the mark. Maybe slightly more, like 18-20. I don't really mind that much though, choosing to accept it for what it is. That's not a poor showing by any means. It's also one of the weakest AA filters out there - this was actually a key factor when I chose the a850. I looked at technically well-executed images from a variety of DSLRs and felt the Sony lost the least.

    The AA filter contributes to noise filtering; noise tends to be spurious single-pixel detail (which can be formally expressed as an edge response), with its spread diminishing rapidly, meaning just about all noise can be identified as something that wouldn't have passed the AA filter. It can be removed before the raw file is even output, regardless of menu settings.

  11. #111
    Senior Member douglasf13's Avatar
    Join Date
    Dec 2008
    Location
    Los Angeles, California, USA
    Posts
    1,965
    Post Thanks / Like
    Images
    1

    Re: A900. Your Best Set Of Lenses

    I would contend that using a raw converter with floating point processing, like RPP, would be a better move before going through the effort of removing an AA filter off one's camera. Detail is a combination of a whole chain of events, and the quality of a raw converter is an often overlooked, yet highly variable and important part of that chain. Compared to even the industry standard, ACR/LR, I get more detail out of RPP with my Sony files without any sharpening than I do with LR3 WITH standard sharpening settings. It's pretty remarkable.

  12. #112
    Senior Subscriber Member
    Join Date
    Nov 2007
    Location
    San Francisco, CA
    Posts
    1,306
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by fotografz View Post
    The sleeper lens in the Sony system is the 70-200/2.8APO ... which I found better than both Canon and Nikon IS and VR zooms ... however, I admit that I may have lucked out with my sample.
    I like mine a lot as well. In fact, I got the a850 explicitly to use either the 70-300G or the 70-200 and ended up sticking with the latter. The f/2.8 and tripod foot together are more valuable to me than the additional reach. I'll attach a strap (with QR clamp) to the foot and throw it over a shoulder as a complement to the M9. For me the 24-70 is really a backup in case something happens to the M9. Ideally I'd rather carry a spare M9 body and probably will one day (maybe once there's an M10), but for now the 24-70 is my security. (Another option I'm contemplating is a NEX with an M adapter. In that case I'd probably sell the 24-70 since I also have an assortment of M42 and M645 lenses.)

  13. #113
    Senior Subscriber Member
    Join Date
    Nov 2007
    Location
    San Francisco, CA
    Posts
    1,306
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by douglasf13 View Post
    I would contend that using a raw converter with floating point processing, like RPP, would be a better move before going through the effort of removing an AA filter off one's camera.
    I've been meaning to take a look at this sometime... Especially since it can be run as a plugin from LR3. So LR3 can be used to crank out quick proofs and web stuff, but for a print 16x24 and up where detail starts to make a difference RPP can be used for the initial conversion, then the TIFF from RPP is used with Silver Efex or other LR3 processing plugins.

  14. #114
    Senior Member douglasf13's Avatar
    Join Date
    Dec 2008
    Location
    Los Angeles, California, USA
    Posts
    1,965
    Post Thanks / Like
    Images
    1

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by Jan Brittenson View Post
    I've been meaning to take a look at this sometime... Especially since it can be run as a plugin from LR3. So LR3 can be used to crank out quick proofs and web stuff, but for a print 16x24 and up where detail starts to make a difference RPP can be used for the initial conversion, then the TIFF from RPP is used with Silver Efex or other LR3 processing plugins.
    That's what I do. I export anything of importance out of LR3 into RPP, and then the TIFF from RPP imports right back into LR3. From there I can adjust the image more if need be and then print/export.

  15. #115
    Senior Subscriber Member
    Join Date
    Nov 2007
    Location
    San Francisco, CA
    Posts
    1,306
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    It seems RPP requires buying an unlock code to use it directly from LR or to use more than one core.

  16. #116
    Senior Member douglasf13's Avatar
    Join Date
    Dec 2008
    Location
    Los Angeles, California, USA
    Posts
    1,965
    Post Thanks / Like
    Images
    1

    Re: A900. Your Best Set Of Lenses

    Yeah, it requires a small donation. I think I sent them $10 or something.

  17. #117
    memories
    Guest

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by edwardkaraa View Post
    FWIW, I will be completing my Zeiss line up with a 35/1.8 equivalent. That would be the Nex 7 with the Zeiss 24/1.8. ...
    I would not buy the e-mount 24/1.8 in your case. You could use your ZA 24/2.0 with the LEA-2 adapter on the NEX. This is a lot cheaper and I guess at least the same image quality


    Quote Originally Posted by edwardkaraa View Post
    Yeah, forgot about the replacement cover. I might try to ask my local technician though. He used to be the main guy at Canon repair so he must know something about it.
    Any news on this?

  18. #118
    Ron Huff
    Guest

    AA removal

    I emailed Max Max about removing the AA on an A900, and Dan Llewellyn, president of the company, replied that they can do this, that he had done several A900's before. Same price, turnaround time 1-2 days. I know several of you were asking about this.

    Ron

  19. #119
    Member
    Join Date
    Mar 2011
    Posts
    187
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    I haven't found anything close to what people are saying here about the full frame Sony cameras producing 16mpx files.

    Mostly because I also have a Nex-5N which is a 16mpx camera with a very weak AA filter. When I actually do prints, the A850 files easily have more detail than the 5N and this is with the 5N using technically better lenses at least according to the Zeiss MTF data.

  20. #120
    Senior Subscriber Member
    Join Date
    Nov 2007
    Location
    San Francisco, CA
    Posts
    1,306
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by FlypenFly View Post
    I haven't found anything close to what people are saying here about the full frame Sony cameras producing 16mpx files.

    Mostly because I also have a Nex-5N which is a 16mpx camera with a very weak AA filter.
    You need to compare it to a 16MP camera or back with no AA filter.

  21. #121
    Member
    Join Date
    Mar 2011
    Posts
    187
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Why how many 16mpx cameras are out there with no aa filters? The overwhelming majority of cameras have aa filters.

    Either way the sentiment that the sony ff cameras produce 16mpx equiv files does not seem to be anything close to what I'm finding.

  22. #122
    Senior Member
    Join Date
    Mar 2011
    Location
    Coral Gables, FL
    Posts
    645
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    I had the 24-70/2.8, which I liked alot, but which was too slow for me. The picture quality was excellent but I found myself wanting something a bit faster, and bit more "prime." I used only a Leica M6 and a 50/1.4 combo for years, and when I started fiddling around with the various distances on the 24-70, I noticed that my picture quality suffered.

    Recently I sold the lens, and bought a pristine Leica R 50/1.4, and had it adapted by Leitex. If anything, I won't miss the 70 end of the lens but I will miss the 24 end of the lens.

  23. #123
    Senior Subscriber Member
    Join Date
    Nov 2007
    Location
    San Francisco, CA
    Posts
    1,306
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by FlypenFly View Post
    Why how many 16mpx cameras are out there with no aa filters? The overwhelming majority of cameras have aa filters.

    Either way the sentiment that the sony ff cameras produce 16mpx equiv files does not seem to be anything close to what I'm finding.
    You only need one. The Kodak 16MP CCD based backs is one possibility. The Leica M9 at 18MP is another. There's really no significant difference between the M9 and a850 files in terms of entropy. They contain about the same amount of image, slightly stretched out in the a850.

  24. #124
    Senior Subscriber Member
    Join Date
    Nov 2007
    Location
    San Francisco, CA
    Posts
    1,306
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Any my 22MP ZD back has slightly more image content than the a850. But for all practical purposes - 18MP or 22MP w/o AA, or 25-30 with; it's all the same. Makes for excellent work in 16x20, 20x30 is okay, but I can tell the difference in texture at arm's length. (Which I consider slightly on the short side of the viewing distance for what I do. 3'/1m is my target distance.)

  25. #125
    Senior Member
    Join Date
    Dec 2008
    Location
    Los Gatos, CA
    Posts
    340
    Post Thanks / Like

    Re: A900. Your Best Set Of Lenses

    Quote Originally Posted by Jan Brittenson View Post
    Any my 22MP ZD back has slightly more image content than the a850. But for all practical purposes - 18MP or 22MP w/o AA, or 25-30 with; it's all the same. Makes for excellent work in 16x20, 20x30 is okay, but I can tell the difference in texture at arm's length. (Which I consider slightly on the short side of the viewing distance for what I do. 3'/1m is my target distance.)

    Interesting. My 11mp Phase back trounced my 12mp A700 by a significant amount. I estimated I could see the same level of detail at 200% screen viewing with the MFDB, which would seemingly equate to 48mp.

    I don't have an 850/900 to compare it to, but by that math, I'd expect my Valeo 22 (same sensor as the ZD) to be MUCH sharper than the Sony. Unless they really softened the AA filter, you should be able to print at least 2x as large.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •