Alpha on Amazon

Subscribe to Cameracraft

Cameracraft is one of the highest quality photo enthusiast magazines you'll find - worldwide. Our Photoclubalpha subscription deal is £4.80 less (UK) than the current discounted offer - it's the lowest cost you can get. The cost will be held for three years and you can cancel at any time. Visit our web pages to see the regular deals, or subscribe below.

Postal Region

Photoclubalpha Forum

Join our free Forum for a wealth of info, great company and some fantastic photo sharing threads! Registration on the Forum is separate from Registration on the website, but you are allowed to register using the same name and password.
  • Give it Your Best Shot • Re: Snow Monkeys at Jigokudani, Japan September 20, 2020
    Beautiful captures of the human-like emotions, in the faces of the monkeys.Statistics: Posted by Fotogeorge — Sun Sep 20, 2020 4:45 pm
    Fotogeorge
  • Give it Your Best Shot • Re: Snow Monkeys at Jigokudani, Japan September 20, 2020
    Thank you. Hard to believe that it took me exactly 50 years to get there. It is rather inconvenient because it is out of the way, far away from Tokyo and other big cities, and I wanted to go in winter when there is snow. In the winter when it is cold is when the […]
    bakubo
  • Give it Your Best Shot • Re: It's Been a Long Time September 20, 2020
    A few more.Statistics: Posted by jbtaylor — Sun Sep 20, 2020 4:20 am
    jbtaylor
  • Give it Your Best Shot • Re: It's Been a Long Time September 20, 2020
    No excuses. Had not shot with the RX1 in a while. Bracketing never occurred to me and am not sure that it would work if handheld. One thing for sure, the free version of Capture 1 for Sony is lacking in essential tools that are and were provided in Lightroom. Time to make an upgrade. […]
    jbtaylor
  • Give it Your Best Shot • Re: It's Been a Long Time September 20, 2020
    sury wrote:I found bracketing to come to rescue on a bad light day, more than once. But Nature is what it is.You have to work with it. I liked the second one. I think first one would have benefited from a bracketed shotor even built-in HDR feature of the camera.Yes, the second one is my […]
    bakubo

Past Article Calendar

August 2010
M T W T F S S
 1
2345678
9101112131415
16171819202122
23242526272829
3031  

CZ 16-80mm Adobe Profile

Continuing to make profiles when time permits, here is a reasonably detailed profile for the Sony DT 16-80mm f/3.5-4.5 ZA Carl Zeiss zoom (2007) created using the Sony Alpha 550 14.2 megapixel camera using Manual Focus Check Live View at 14X to set the lens focus and ensure the chart is positioned to use 100% of the frame.

//www.photoclubalpha.com/DSLR-A550 (DT 16-80mm F3.5-4.5 ZA) – RAW.lcp

Right click to download this 56Kb file which should be placed in the Lens Profiles/1.0/Sony folder of the directory on your computer which holds Adobe Lens Profiles.

This profile has been created at full aperture and f/8-f/11 depending on focal length, at 16mm, 24mm, 35mm, 50mm and 80mm focal lengths and involved 90 raw captures.

It is possible in ACR/Lightroom to use profiles which are not created on your own camera type. This profile can be applied to any APS-C Sony or Minolta camera using the 16-80mm lens; because the A550 is currently the highest resolution body, the CA data gathered is more accurate than would be possible using a lower resolution body but may need a saved adjustment in defaults. Individual lenses differ slightly and may also need adjustments.

I have checked the operation of the profile on files from A100, A700, A200, A380, A350 and A550 and it’s very effective in removing CA. Illumination is much improved at 80mm (notably). You may prefer to turn the geometric correction down to zero (off) when the angle of view matters more than perfect straight lines – and also, where people are in the shot near the edges at 16mm. The distortion of the lens is optimised to lessen ‘stretched faces’ at the ends and corners of the shot, applying the profile removes this slight barrel distortion and does not improve groups. It’s most useful for horizons, rooms, seascapes, and subjects where a good straight rendering is critical.

It has been suggest I should add a donation button for these profiles. By all means see our subscription page, there’s a downloadable PDF of the latest Photoworld magazine for $3. I could easily have zipped profiles and sold them in the same manner, but that is not why photoclubalpha is here; Adobe provide the software to do this free (OK, I know what the rest of their stuff cost me…) and profiles should be made public domain by creators.

– David Kilpatrick

Comments are closed.