All Forum Comments
Comment by pschlute posted on Pentax Ambassador Short Film at 09/02/2019 - 11:58
Comment by pschlute posted on Blotches. Any thoughts? at 08/02/2019 - 09:43
Comment by pschlute posted on Fine focus adjusted but still back focuses!!! at 06/02/2019 - 10:48
Fantastic work.
Comment by pschlute posted on Touring - Multiple Exposures at 06/02/2019 - 00:12
Thanks for the reply's. The fine focus is 'apply one' not 'apply all'. the two lenses needed differing values to correct things. The issue has been around a while over various scenes so I don't think it was a case of missing the focus on the door edge. I focused a few times to ensure that It was right. Firmware is V1.16 so up to date.
It's beginning to look like my K5 body doesn't like this Sigma lens for reasons known only to itself. I went for the Sigma as it was in a sale , had good reviews & my 70-300 Sigma is fine. It's not the end of the world just very weird that reputable manufacturers like Pentax & Sigma can't sort themselves out when we can put machines into the far extremes of the universe!! So unless anyone has a simple answer It'll be a bit of research into whether to go just 70mm or K3ii + 70mm.
The only other thing to suggest is to do your lens AF/FA in outside daylight. Some artificial light can affect the AF accuracy.
Comment by pschlute posted on Fine focus adjusted but still back focuses!!! at 06/02/2019 - 00:07
Comment by pschlute posted on Nicholas Cameras at 04/02/2019 - 23:41
but the zoom at 70mm back focussed, the shed planks (3ft further back) are sharper than the door edge. What's going on??
if you did say 10 attempts at an identical scene , how many would be correctly focussed?
Af is not infallible.
ps ....are you doing an "apply all" AF/FA adjustment, or two individual ones for each lens ie "apply one"
Comment by pschlute posted on Fine focus adjusted but still back focuses!!! at 04/02/2019 - 23:33
Compared to other systems there are very few modern lenses for Pentax FF, I think that's the complaint, and they're right.
Re-vamping the FA limiteds with in-lens focus motors would be an even smarter move.
Revamping FA Ltd with in-lens motor is not a revamp. It is a new lens.
Comment by pschlute posted on Revamped FA 35mm f/2 rumor at 03/02/2019 - 18:51
Comment by pschlute posted on Murmuration at 03/02/2019 - 17:49
Agreed on that. Yes, they're fine some of the time but one doesn't wish it to get confused by something out of the ordinary.
Comment by pschlute posted on Arsenal camera assistant at 03/02/2019 - 16:57
