Search results for 'back focus' - page 1516
K7 grip Dilemma
I hope they will do a great Cash-back offer like they did with the K20D but I don't think it will happen with the K7 :(
Posted by Anvh on 10/04/2010 - 21:27
TAMRON 10-24mm f3,5 - 4,5
hello thank youo for your words,.. I use for landsacape metering matrix , but the camera with the lense in that f8 donīt work so well, the af, and sometimes is very dificult to focus, in afs or the afc,... best regards
Posted by NSANTOS on 11/04/2010 - 20:50
TAMRON 10-24mm f3,5 - 4,5
With that photo the camera wouldn't be so concerned about the sun it will want to have the rest of the photo in good exposure, it's normal. One tip for AF, it needs contrast to get a focus, without any or little contrast it would have a hard time to get a focus lock.
Posted by Anvh on 11/04/2010 - 21:42
Over-exposure on AUTO PICT mode
Hi, This is a shot I took of a derelict petrol station while out cycling in Leicestershire this afternoon, using my K100D Super fitted with an old manual focus Pentax-A 28mm lens. It's decidedly over-exposed, isn't it? Are older lenses prone to exposure problems with a digital SLR, or ...
Posted by lonegroover on 11/04/2010 - 22:55
Question about K-7
Richard beat me to it by a short head (and a slight freeze on my connection). It's a step change because of the ability to calibrate multiple lenses individually, rather than a option to move the focus back or forward for all lens to counteract front/back focusing which the K10D has. Not all lens...
Posted by Steve Chasey on 19/04/2010 - 13:02
New firmware updates today
Good spot Gwyn! Reassuring to see them releasing updates for cameras from so far back. Wouldn't have expected that at all. Looks like they are all to do with SDHC cards so maybe it was easy to roll out to all. Nothing groundbreaking - I've not seen many reported problems in this area. Do you...
Posted by WobblyGoblin on 22/04/2010 - 10:19
New firmware updates today
Updated both my K10 and K20, also MAK`s K200. My K10 AF appears to be much faster. No difference with my K20. As with HG`s findings the K200 focus at the long end of a Tamron 28 - 300 is a lot less soft. Cedric
Posted by cedricd on 24/04/2010 - 21:40
Which Pentax digital SLR
warehouse express have a great deal 438 for the kx with 18-55, a hoya filter UV to protect the lens, and a set of sanyo eneloop batteries. Plus if you go thru a cashback site (topcashback or quidco) you'll get another 2% off, about 9Ģ, so a total of 429 inc free delivery. the currys deal is also ...
Posted by cubecowboy on 24/04/2010 - 14:25
Which Pentax digital SLR
Pentax K series 85mm f2.2 soft focus lens Pentax lx finder FB-1 and FC-1 Pentax mount adapter K And I have to reach a grand total of Ģ439, should be doable
Posted by ScribblerJohn on 24/04/2010 - 16:54
viewfinder brightness !
Do you mean the back panel LCD brightness? :? (There's a setting for that!) The viewfinder has no brightness controls - it's optical :P And the digital display doesn't have a brightness... I often find cupping my left hand over the viewfinder and my eye helps in bright side lighting. Matt
Posted by MattMatic on 22/04/2010 - 16:55
viewfinder brightness !
Do you mean the back panel LCD brightness? :? (There's a setting for that!) The viewfinder has no brightness controls - it's optical :P And the digital display doesn't have a brightness... I often find cupping my left hand over the viewfinder and my eye helps in bright side lighting. Matt No...
Posted by stu49 on 22/04/2010 - 17:17
AF adjustment - finally an answer!
Finally somebody tested the option of hacking into the k7/k20 system, and adjust the af - resulting in a cumulative adjustment also for the in-camera af adjust measure. this is the dpreview thread: http://forums.dpreview.com/forums/readflat.asp?forum=1036&thread=34974010&page=1 I've asked th...
Posted by nathanever82 on 24/04/2010 - 09:33
AF adjustment - finally an answer!
MODSET.442 is for K20D v. 1.03 MODSET.474 is for K7 v.1.01 The file should contain one line of text, followed by a line shift: [OPEN_DEBUG_MENU] Holding the Menu button while switching the camera on gives access to a menu where you may ENable or DISable the DEBUG menu. I've tried it on my...
Posted by terje-l on 24/04/2010 - 20:08
Depth of field-hyperfocal distance
Neil, use a small aperture, focus about 2/3 Rd's in to the composed shot, look at it and learn, it's the best way. Remember you can guarantee if you see an image with a great depth of field it was f16 or greater;and it was on a tripod so the slow speed that goes with that sort of aperture does not ...
Posted by adwb on 24/04/2010 - 22:18
Depth of field-hyperfocal distance
I think it would be very useful Neil if you posted a picture where you feel the foregound is very soft. This might make the solution more obvious and more helpful to you. In general though, if the foreground is still soft bring the focus point a little closer, make the aperture smaller still and ...
Posted by johnriley on 25/04/2010 - 08:23
Depth of field-hyperfocal distance
Neil, this today the flowers are about 1 foot away So I focused standing up on what I estimated to be 3 foot away, changed to manual focus squatted down and recomposed. 18-55 lens set at 20mm for that my table suggests for 3.5 feet/ F11 is my hyperfocal, So that is my absolute max focus distance. w...
Posted by adwb on 26/04/2010 - 18:28
Depth of field-hyperfocal distance
There is an interesting article on about focussing to what he calls the "True hyperfocal" distance. He postulates that hyperfocal distance isn't particularly useful for shots taken with a small aperture because it doesn't take into account reduction of sharpness due to diffraction. He explains...
Posted by andrewk on 27/04/2010 - 00:48
Depth of field-hyperfocal distance
thanks for the input guys- Alistair, I liked your shot of the Clifton S. Bridge ( dust spots notwisthstanding). I am just not quite sure of the maths that you used regarding the relationship between the flowers at one foot and the decision to focus 3 feet away. One third into the picture is the ...
Posted by neill on 29/04/2010 - 22:54
Depth of field-hyperfocal distance
Thanks for the comments. Alistair- do you mean 1/3 in? Although I have tried this rule of thumb, I find that the foreground turns out rather soft. So far, the best I have come up with for on line advice is the following http://www.cjcom.net/articles/hyperfoc.htm[/link] I am trying to...
Posted by adwb on 30/04/2010 - 08:34
K-x TIPA awards
On the other hand, I'm not long back from a slightly-longer-than planned trip to Marrakech (3 nights turned into 10) with a K20d and two Li-Ion batteries - deliberately left the charger at home. I took about 800 pictures and am still on the first battery. Both batteries (one original, on cheapy no-n...
Posted by MostlyHarmless on 26/04/2010 - 21:05
