All Forum Comments
Comment by PaulEvans posted on Catch in focus- wow! at 27/06/2011 - 09:13
Basically it would have to be a layer which matches the "ND to full transparency" transition point of the original filter, including whether it was a hard or soft grad.
What you'd then want to do is to apply a green(-ish) tint to the layer (to counteract the magenta cast). Ideally you'd want to measure the degree of cast first (using a known neutral object in the ND zone) so you could see how much cast you were trying to remove and whether it was green channel only that was "down" or whether other colours were also affected.
Sorry I can't be more precise but it also depends on what software package you're using for post processing. I know exactly how I'd do it in Lightroom but if you're using something else that won't help!
Paul
Comment by PaulEvans posted on removing colour cast at 27/05/2011 - 07:15
Paul
Comment by PaulEvans posted on WTB: Pentax FA 24-90/3.5-4.5 lens at 26/05/2011 - 07:29
Paul
Comment by PaulEvans posted on What do you set in the "User mode" at 18/05/2011 - 20:48
RAW has 12 bits of data per colour channel(or 14 on the K5), JPEG has 8. Much more detail to retrieve in shadow areas, more chances with blown highlights. If you do need to any serious Postprocessing on a JPEG you soon run out of road.
Good as the Pentax in camera PRIME engines are, virtually every review confirms ACR or equivalent is better - and infinitely more flexible.
I get to refine my creative intent on a big screen not a small one - and don't have to keep taking my reading glasses on and off.
I agree with John on getting the exposure and creative intent as right as possible at the time of shooting, but for me that's still a start not an end.
Mixed lighting - grad filters and the paintbrush effects, together with HSL tweaks, do allow you to do quite a lot here in postprocessing. Although it's not a problem I often have as a landscape photographer.
I don't actually make many changes in postprocessing to many of my images - but I like to know I can if I need to!
Just my opinion...
Paul
Comment by PaulEvans posted on Raw v Jpeg at 09/05/2011 - 07:14
The Alhambra is magnificent. Booking tickets in spain can be a faff - best to book from the UK via 'tinterweb.
Paul
Comment by PaulEvans posted on 14mm or 15mm at 05/05/2011 - 18:25
I would think if I shot jpeg, I would still use my ND grads. As it is, I haven't used them for ages and feel that if I did come across a scene with so much contrast that I couldn't capture it in RAW, I'd tend to bracket and combine the images in HDR.
What do others think?
Paul
Comment by PaulEvans posted on ND filter advice for DA Ltds at 30/04/2011 - 06:30
Paul
Comment by PaulEvans posted on New entry level limited lens at 29/04/2011 - 18:01
20 inch, 4 to 3 aspect ratio screen.
Paul
Comment by PaulEvans posted on What is the best monitor? at 27/04/2011 - 11:52
Food for thought.
Paul
Comment by PaulEvans posted on A 3 Lens System at 24/04/2011 - 18:22


Ta
Paul