DSLRUsers.com

I just read an article in this month's "Camera" magazine about a company called DxO ( http://www.dxo.com )
Apparently they have come up with software that will correct most of you lenses shortcomings.

The DxO Lab team has developed algorithms for each brand of D-SLR camera body and each brand of commonly used accessory lens. When you buy the software you specify the camera body and lens ( or lenses) you want it to work with. The software is then shipped with the appropriate modules.

Looks like you can now buy the bigma and have it perform like Birdoog's 200-400VR

I think that just "fixes" barell/pincushion/moustash distortion right?

If thats all it does, then you could just download PTLens plugin filter for PS and hand over $5 to the author if you feel like it (and are an honest person)...works very well indeed.

Auto profiles are available, and it reads exif data to load the right algorithem for the focal length. The author even makes profiles for any lens that you send him the right type of images which allow him to develop the profile. Works in 16 bit, so ya can do this work very early in your RAW workflow...has vingetting correction built in....runs easily as part of a batch/action in PS....I cant say enough good things


If you dont have PS, then you could get the stand alone app too.

http://www.epaperpress.com/ptlens/


Here is a list of Nikon and other lenses with profiles aready available:


Nikkor Lenses
multiplier = 1.0
24-85mm f/3.5-4.5G ED-IF AF-S Nikkor
70-210mm f/4.5-5.6 Nikkor
80-200mm f/2.8D ED AF Nikkor
28mm f/2.8D AF Nikkor
28mm f/3.5 PC-Nikkor (unshifted)
35mm f/2.0D AF Nikkor
50mm f/1.4D AF Nikkor
85mm f/1.8D AF Nikkor

multiplier = 1.5
12-24mm f/4G ED-IF AF-S DX Nikkor
17-35mm f/2.8 ED-AFS Nikkor
17-55mm f/2.8G ED-IF AF-S DX Nikkor
18-35mm f/3.5-4.5D ED-IF AF Nikkor
18-70mm f/3.5-4.5G ED-IF AF-S DX Nikkor
24-85mm f/2.8-4.0D AF Nikkor
24-120mm f/3.5-5.6G ED-IF AF-S VR Nikkor
28-200mm f/3.5-5.6G ED-IF AF Nikkor
35-70mm f/2.8D AF Nikkor
50-135mm f/3.5 AIS Nikkor
70-180mm f/4.5-5.6 ED-AF-D Micro Nikkor
70-200mm f/2.8G ED-IF AF-S VR Nikkor
70-210mm f/4 AF Nikkor
70-300mm f/4-5.6D ED AF Nikkor
80-400mm f/4.5-5.6 ED-AF-D-VR Nikkor
15mm f/3.5 AI Nikkor
15mm f/2.8 Sigma EX Diagonal Fisheye
16mm f/2.8D AF Fisheye Nikkor
20mm f/2.8D AF Nikkor
24mm f/2.8D AF Nikkor
24mm f/2.0 AIS Nikkor
28mm f/2.0 AIS Nikkor
35mm f/1.4 AIS Nikkor
45mm f/2.8 AI GN-Nikkor
50mm f/1.4 AIS Nikkor
50mm f/1.8 AIS Nikkor
50mm f/2.0 non-AI Nikkor
55mm f/1.2 AI Nikkor
55mm f/2.8 AIS Micro-Nikkor
58mm f/1.2 Noct-Nikkor
105mm f/2.8D AF Nikkor
135mm f/2.0 AIS Nikkor
180mm f/2.8 ED-AIS Nikkor
500mm f/8.0 Reflex Nikkor

3rd Party Lenses
multiplier = 1.0
Schneider 28mm f/2.8 PC
Sigma 12-24mm f/4.5-5.6 EX DG
Sigma 20mm f/1.8 EX
Tamron 28-75mm f/2.8 XR Di Aspherical

multiplier = 1.5
Sigma 18-50mm f/2.8 EX DC
Sigma 18-125mm f/3.5-5.6 DC
Sigma 28-300mm f/3.5-6.3 Macro ASP IF
Tokina 12-24mm f/4 AT-X 124 AF Pro DX
Zenitar 16mm f/2.8 MC Fisheye



Enjoy

Dave

I have used a Dx0 profile for awhile - to buy they are just too expensive

sirhc55 wrote:I have used a Dx0 profile for awhile - to buy they are just too expensive

PTLens is free...well you should give him the $5 if you keep using it.

Dave

EnzyG wrote:

sirhc55 wrote:I have used a Dx0 profile for awhile - to buy they are just too expensive

PTLens is free...well you should give him the $5 if you keep using it.

Dave

Dave - I don’t know where you are getting your $5 figure from

You are allowed one module to try for free, which I did. DxO Optics Pro is $US139.00 and the DxO Optics Pro 2.2 Elite is $US219.00. The modules for each lens are a different price, but average out at around $US35.00 for each lens

sirhc55 wrote:Dave - I don’t know where you are getting your $5 figure from

Im not talking about DxO....I said PTLens, I even had a link out to the site where you can get PTLens in my first post above <grin>

You should try it out to fix lens distortions etc...the $5 is the authors suggested donation to support his work...the listed lenses currently have profiles for PTLens, and are free to download

Dave

Your wishes but none of of them work as you try, been down that road with another Sigma fan

EnzyG wrote:

sirhc55 wrote:Dave - I don’t know where you are getting your $5 figure from

Im not talking about DxO....I said PTLens, I even had a link out to the site where you can get PTLens in my first post above <grin>

You should try it out to fix lens distortions etc...the $5 is the authors suggested donation to support his work...the listed lenses currently have profiles for PTLens, and are free to download

Dave

Sorry Dave I thought the thread was about DxO - being a designer I only have the lowly Macintosh and PTlens is not for me. Whoops sorry, unlike PC’s I can run Windows 2000 Professional on my Mac so I might give it a go.

Thanks for the tip