Free Shipping on ALL Products
camera reviewsbest cameraslens reviewsphotography tipscamera forumvideo toursphotography bookssupport me
It is currently Thu May 23, 2013 2:47 am

View unanswered posts | View active topics


Board index » General and Off-topic » Off-topic (photography-related)

All times are UTC




Post new topic Reply to topic  Page 1 of 1
  [ 10 posts ] 
  Print view Previous topic | Next topic 
Author Message
Bob Andersson
 Post subject: Blue
PostPosted: Wed Sep 28, 2011 8:31 pm 
Offline
Moderator
User avatar

Joined: Sat Sep 30, 2006 4:30 pm
Posts: 9619
Location: UK
Hi folks,

While processing some calibration frames for my latest astro-photo (this post) I produced this:
    Image
It's actually a map of the vignetting of my Canon EF 85mm f/1.2L USM lens at f/1.2, albeit grossly exaggerated. The blue colour has no relevance to what I was doing but that's what came out and I kind of like the effect. Restful...

Bob.

_________________
OM-D E-M5 + ED 12-50mm, H-PS14042E, H-F007014E, L-RS014150E, M.ZUIKO DIGITAL 45mm 1:1.8.
Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.
Top
 Profile  
 
popo
 Post subject:
PostPosted: Wed Sep 28, 2011 9:00 pm 
Offline
User avatar

Joined: Sun May 25, 2008 12:48 pm
Posts: 7874
Location: UK
Hmm... blue... *drool*

It initially reminded me of the film Blue but this has detail...

_________________
Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.
Top
 Profile  
 
Mark.
 Post subject:
PostPosted: Wed Sep 28, 2011 9:27 pm 
Offline
User avatar

Joined: Mon Jan 14, 2008 1:25 pm
Posts: 2619
Location: Scotland
Reminds me of a cam HAL 9000.

_________________
Mark Osborne
My life through an iPhone
Top
 Profile  
 
Adi Zulhusni MarkII
 Post subject:
PostPosted: Thu Sep 29, 2011 12:17 am 
Offline
User avatar

Joined: Thu Dec 18, 2008 4:31 pm
Posts: 2439
Location: Brunei & Soon in Bristol UK
I See Blue




:roll:

_________________
Soon.....Image
Top
 Profile  
 
HikingMike
 Post subject:
PostPosted: Thu Sep 29, 2011 12:24 am 
Offline
User avatar

Joined: Tue Apr 26, 2011 4:15 pm
Posts: 867
Location: Kanduhar, Afghanistan
Oh bother, it's purple to me :?

_________________
Mike "The Squirrel"
Canon 550D | Canon EF 35mm 1:2 | Canon 50 f/1.8 II | Sigma 18-125mm DC OS | Tamron SP 70-300mm Di VC USD | Canon 430EX II
Military Issued Canon 40D | Canon 55-250mm IS
Top
 Profile  
 
Jiko
 Post subject:
PostPosted: Thu Sep 29, 2011 10:29 am 
Offline
User avatar

Joined: Tue Jan 06, 2009 9:22 pm
Posts: 1236
Location: Speyer (Germany)
Is your monitor's white balance set to "warm"? :D

_________________
Canon EOS 500D + Canon EOS 5D Mark III
Canon EF 24-105mm 4L IS USM + EF 100-400mm 4.5-5.6L IS USM + EF 100mm 2.8L Macro IS USM + Sigma 12-24mm 4.5-5.6 EX DG HSM + Canon Speedlite 580 EX II + Nissin Speedlite Di 466
Top
 Profile  
 
Razvan
 Post subject:
PostPosted: Thu Sep 29, 2011 11:51 am 
Offline
User avatar

Joined: Sun Jun 22, 2008 5:30 pm
Posts: 2430
Location: Bucharest, Romania
I knew there was something wrong with the Canon 85 F/1.2 ! It produces only blue photos! :) And with vignetting!

_________________
Gear: Nikon D80, 18-105mm, 35mm F/1.8, 85mm F/1.8, SB-600
Visit my work here
Top
 Profile  
 
Citruspers
 Post subject:
PostPosted: Thu Sep 29, 2011 6:35 pm 
Offline
User avatar

Joined: Sun Feb 15, 2009 12:59 pm
Posts: 6009
Location: The Netherlands
Looks like blue, with a slight hint of special steel blue/lagoon in the center.

That's some pretty bad vignetting though....

_________________
I take pictures so quickly, my highschool was "Continuous High".
Top
 Profile  
 
Bob Andersson
 Post subject:
PostPosted: Wed Oct 05, 2011 10:36 am 
Offline
Moderator
User avatar

Joined: Sat Sep 30, 2006 4:30 pm
Posts: 9619
Location: UK
Quote:
That's some pretty bad vignetting though....

Absolutely, the lens is rubbish!

Or it could be that I "stretched" the luminance... :twisted:

Bob.

_________________
OM-D E-M5 + ED 12-50mm, H-PS14042E, H-F007014E, L-RS014150E, M.ZUIKO DIGITAL 45mm 1:1.8.
Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.
Top
 Profile  
 
Citruspers
 Post subject:
PostPosted: Wed Oct 05, 2011 8:18 pm 
Offline
User avatar

Joined: Sun Feb 15, 2009 12:59 pm
Posts: 6009
Location: The Netherlands
Ya I figure most of it will vanish when your histogram doesn't look like a field goal anymore ;)

_________________
I take pictures so quickly, my highschool was "Continuous High".
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 10 posts ] 

Board index » General and Off-topic » Off-topic (photography-related)

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  

All words, images, videos and layout, copyright 2005-2012 Gordon Laing. May not be used without permission.
/ How we test / Best Cameras / Advertising / Camera reviews / Supporting Camera Labs

Webdesign by Alphabase IT
Powered by phpBB® Forum Software © phpBB Group