All Forum Comments
Comment by pschlute posted on 'Best' AF Pentax DSLR? at 04/10/2020 - 01:27
Very high quality on the print work they have done for me (24x16 inch).
Comment by pschlute posted on recommendations for commercial scanning. at 03/10/2020 - 13:09
Suggest you wait for the new aps-c model to be released, expected this year, but you should expect to get the latest lenses to get the best performance both optically and for AF speed.
Comment by pschlute posted on 'Best' AF Pentax DSLR? at 02/10/2020 - 23:36
Yes lovely light on all three.
Comment by pschlute posted on Some rustic windows at 02/10/2020 - 18:47
Comment by pschlute posted on Five in Five at 02/10/2020 - 11:56
Comment by pschlute posted on Analogue Wonderland Kodak Ektar competition at 30/09/2020 - 15:28
Comment by pschlute posted on Use of flash in art galleries. at 29/09/2020 - 20:15
I don't think that Alan has retired, he fixed a lens for me last Thursday.
Comment by pschlute posted on Repair recommendations for Pentax 300 lens at 29/09/2020 - 19:13
So now to the question. How can I tell whether colours that are not quite matched are out of sRGB gamut, so cannot be matched by tweaking, or within gamut, so could in principle be tweaked to match?
However one thing you can do if you find an awkward mismatch is to do a proof gamut warning. I only know Photoshop, not your software I am afraid.
In Photoshop I would process the raw file in a wide colour space like AdobeRGB or ProPhoto. Then open the image. Using the soft proofing tools select the "device to simulate" as sRGB. If there is an option to "preserve RGB numbers" make sure it is unchecked. Then select "Gamut warning". Any colours that are not capable of being displayed in sRGB will be highlighted.
The problem here however is that unless you have a wide gamut monitor to view the image on while working on it, you wont know if the wider colour space image renders the picture any more accurately than in sRGB ! If you have a significant mismatch you will be just as well to try and eyeball the colour to the closest match rather than delve into the dark arts of wide gamut editing.
One final thing is that although you profile your monitor to get accurate sRGB display colours, I doubt your family do, so what they will end up seeing is anyone's guess
Comment by pschlute posted on Colour Space and Paintings at 25/09/2020 - 13:38
Comment by pschlute posted on Do you think this is too dear? at 22/09/2020 - 08:10


On a final note, Is it me or do DSLRs need a lot more attention paid to the AF compared to film? I really can't recall having these issues with my old MZ-3, although I didn't shoot much moving wildlife just due to the cost of the film!
My comments above on the accuracy and speed of Af on the K1 was related to AF-S and generally static subjects. For sports/wildlife it is fair to say Pentax has been lacking when tracking a subject. The newer lenses are better....my DFA 70-200 tracks much better than the older DA* 60-250 for example. I would keep an eye on the latest model however, Pentax must be well aware it is one area they get criticised for and I would expect the K- "new" to address the issue.