Search results for 'back focus' - page 1818
Movie mode shutter/mirror actuating on record
On the K7 / K5 series models this behaviour is related to the Movie Autofocus mode selected - this is controlled in the menu. It depends on whether you choose a phase detection or contrast type autofocus (phase type will flip the mirror to allow the AF snesors to work, a quicker AF response). Maybe ...
Posted by McGregNi on 01/05/2014 - 21:52
Movie mode shutter/mirror actuating on record
As mentioned, doesn't matter if AF or Manual focus is used. Same thing happens. Also, this happens after ½ button press focusing when in AF mode. Back Button AF also makes no difference. In any case, those CDAF/PDAF options don't exist for the K-50.
Posted by SteveLedger on 01/05/2014 - 21:55
Movie mode shutter/mirror actuating on record
Not sure if you are right on this Nigel as the OP states 'Doesn't matter if I'm using AF or M focus' and also I didn't think AF when recording was possible on a K-5 or a K-7? Anyway, the OP has a K-50, I'm not sure what the AF possibilities with video are on this model. Regards David
Posted by davidstorm on 01/05/2014 - 21:57
Movie mode shutter/mirror actuating on record
So what kind of Auto Focus technique does the K50 use then? Is it not phase detect type causing this mirror action?
Posted by McGregNi on 01/05/2014 - 22:44
Movie mode shutter/mirror actuating on record
So what kind of Auto Focus technique does the K50 use then? Is it not phase detect type causing this mirror action? The unit will focus with a half press, but only fire the shutter when you press fully to start recording. It's in live view only right from the selection of video mode, and will focu...
Posted by richandfleur on 01/05/2014 - 23:15
Movie mode shutter/mirror actuating on record
Manually focusing [using FP] doesn't make any difference, so focus mode has nothing to do with it I think. Only reason I bought the K-50 is for better stills outdoors in full sun. I have a K-01 which is useless outside. The K-01 and K-50 movie IQ is the same, so I'll not bother with the K-50 for mo...
Posted by SteveLedger on 01/05/2014 - 23:54
Smeared greens/yellows from K3
I usually get the windows cleaned, or do it myself, if I'm going to be taking pictures on the flight, and there's no abrasions on the flight-deck windows. Optically they are obviously not perfect, being of a sandwich construction and nearly an inch thick. After doing some more research, I'm wonde...
Posted by aliengrove on 06/05/2014 - 11:20
Smeared greens/yellows from K3
I've added the post I put to David Storm's query on my thread in the Classifieds here as it's probably a more appropriate place for it than the Classifieds section.... David, I'm still trying to get my head round some of it, and will post more detail when I have. I think I'm dealing with effect...
Posted by aliengrove on 24/05/2014 - 02:00
Smeared greens/yellows from K3
Meanwhile, a better example of the nature of what I'm talking about....100% crop Initially I thought it might be defects in the windows; usually this occurs at the edges of the frame, where I've shot too close to edges of the window, but this is occurring in a lot of images all over the plac...
Posted by aliengrove on 24/05/2014 - 03:10
Smeared greens/yellows from K3
I do notice when printing images. I had a flight over Greece where all the shots were unusable. Compare this shot, with hardly any green in the image, also a 100% crop. The focus of the whole image is far better. I think somehow green is throwing the focus out, and it makes areas of green especi...
Posted by aliengrove on 24/05/2014 - 16:58
Smeared greens/yellows from K3
Compare this shot, with hardly any green in the image, also a 100% crop. The focus of the whole image is far better. Yes, certainly looks a lot sharper. I think somehow green is throwing the focus out, and it makes areas of green especially look more blurred. It's quite a stretch to imagine t...
Posted by ChrisA on 24/05/2014 - 17:11
Smeared greens/yellows from K3
If it had focused on the window nothing would be in focus, Chris. I don't know what "distant view" means in the exif. One reason the GR shots are totally unaffected could be because I set the focus to infinity, so the camera is not having to focus at all. I have seen yellow smeared in a couple of im...
Posted by aliengrove on 24/05/2014 - 17:31
Smeared greens/yellows from K3
It's strange that Puggy mentioned cabin pressure, someone sent me this link.... You certtainyl don't need a pointless product like "SpyderLensCal" to calibrate autofocus. The back of a cornflake packet is much cheaper :)
Posted by Smeggypants on 24/05/2014 - 23:40
K20D screen protector
Having just got my K20D back from repair, I'd like to fit some sort of screen protector. The screen had got badly scratched in my camera bag previously (which I could live with) before being cracked when sent flying by an over-excited small child. I don't really like those sticky plastic sheets....
Posted by womble on 10/05/2014 - 12:15
K20D screen protector
The Expert Shield ones sold on Amazon are 'sticky plastic sheets' but you can hardly see them and can stand up to a belt sander according to their youtube advert. You can take them off, wash them and put them back on.
Posted by gartmore on 10/05/2014 - 13:12
K-50 auto focus, question please?
It is some little time since last I visited. The reason being that I have had, in the ensuing time a Canon 650D. Now I have been given the chance to change /upgrade my camera, I have the auto focus problem back. I have mentioned here previously that I have always had an affection for Pentax camer...
Posted by Gedski on 20/05/2014 - 19:22
K-50 auto focus, question please?
You may find answers a little thin on the ground. I could be very wrong but I don't seem to notice many forumites using the K-50! I shall be interested in seeing how many responses you get :D
Posted by Gravelrash on 20/05/2014 - 20:11
K-50 auto focus, question please?
You shouldn't have any issues, unless the bird is flying straight at you at 90mph. But even a Canon would struggle with that!
Posted by SteveEveritt on 20/05/2014 - 20:13
K-50 auto focus, question please?
AF speed is very lens dependent on both cameras. Canon has more choice in fast AF long lenses, but that doesn't mean you can't do as well with the K-50 but you'll have to do your lens research before buying.
Posted by sbrads on 21/05/2014 - 18:43
K-50 auto focus, question please?
I can't help you with the exact models you state, but I do have the K30 and an old canon 30D plus I do a lot of BIF's. I use an internal focus lens on the K30, a pentax FA*300 F4.5 and a HSM lens on the 30D, a sigma 100-300 F4. Judging focus speed I'd say no difference that I can notice. However BI...
Posted by walt on 21/05/2014 - 19:32
