Search results for 'back focus' - page 2090
K-5 Focus Questions
My mistake Bill, no worries... I don't think I've got any 'major' issues the FA50 is sharp but I don't think it's 'as sharp' as it was on the K-x... My FA35 is as sharp or sharper on the K5... I bought my K5 used from SRS so if and still have some waranty left on it - happy that if there was ...
Posted by DaveHolmes on 08/04/2013 - 23:52
K-5 Focus Questions
But it does seem that a lot of Pentax users use the AF-adjustment feature... Is this a feature specific to Pentax? As I don't hear about the CaNikon users I know using the feature on/for their cameras/lenses... It's on other cameras. Best regards
Posted by K10D on 09/04/2013 - 06:07
K-5 Focus Questions
"used a test chart, free in Amateur Photographer" i had this chart but from recollection the instructions were chart at 45 to camera, wide open aperture and 25 or 50 x focal length of lens between chart and lens. which is why i queried the distance. there was also a tutorial on youtube around th...
Posted by redbusa99 on 11/04/2013 - 16:42
K-5 Focus Questions
It's on other cameras. Best regards Glad it is, the Sigma 70-200mm f2.8 OS I bought for my 7D a few weeks back needs +10 dialled in to get it sharp.
Posted by Mike-P on 11/04/2013 - 17:15
K-5 Focus Questions
The cheaper Canon's (60D and below) don't have any adjustment. -
Posted by Algernon on 11/04/2013 - 18:35
K-5 Focus Questions
The cheaper Canon's (60D and below) don't have any adjustment. - So the question is: If Canon don't feel they need it, why do Pentax?
Posted by DaveHolmes on 11/04/2013 - 18:37
K-5 Focus Questions
The positive point is that this professional feature is available even on lower priced Pentax cameras. It's needed mostly for third party lenses I would imagine. I haven't found a Pentax lens yet that needed adjustment. No doubt I will one day. I don't see anything negative about something being ...
Posted by johnriley on 11/04/2013 - 18:40
K-5 Focus Questions
The cheaper Canon's (60D and below) don't have any adjustment. - So the question is: If Canon don't feel they need it, why do Pentax? It's called selling up.... the same way that basic Fords don't have things like carpets in the boot and lights over the rear seats unless you pay another £1,000...
Posted by Algernon on 11/04/2013 - 18:42
K-5 Focus Questions
The positive point is that this professional feature is available even on lower priced Pentax cameras. It's needed mostly for third party lenses I would imagine. I haven't found a Pentax lens yet that needed adjustment. No doubt I will one day. I don't see anything negative about something being ...
Posted by cabstar on 11/04/2013 - 18:49
K-5 Focus Questions
The positive point is that this professional feature is available even on lower priced Pentax cameras. It's needed mostly for third party lenses I would imagine. I haven't found a Pentax lens yet that needed adjustment. No doubt I will one day. I don't see anything negative about something being ...
Posted by DaveHolmes on 11/04/2013 - 18:55
K-5 Focus Questions
Well they made the K-5 so that it can remember the settings for 20 Pentax Lenses :shock: So they must have thought it was needed :lol: '
Posted by Algernon on 11/04/2013 - 19:42
K-5 Focus Questions
I think you can adjust any lens, although there's no guarantee that the third party lenses will report their identity correctly. No doubt somebody has done it and can tell us definitively.
Posted by johnriley on 11/04/2013 - 23:08
K-5 Focus Questions
Any lenses which don't report an ID, which includes M42 and M series can be adjusted under "Apply to All" but the setting has to be changed for the next lens used if that doesn't report an ID and needs a different setting. '
Posted by Algernon on 12/04/2013 - 07:56
K-5 Focus Questions
[quote:3496ace15f="johnriley"]The positive point is that this professional feature is available even on lower priced Pentax cameras. It's needed mostly for third party lenses I would imagine. I haven't found a Pentax lens yet that needed adjustment. No doubt I will one day. I don't see anything n...
Posted by JohnX on 12/04/2013 - 09:11
K-5 Focus Questions
JohnX is right - unless we are all prepared to pay massive sums of money for kit that is manufactured to the highest possible standards, we will require some adjustment to allow for both manufacturing tolerances and wear/tear. I think you can adjust any lens, although there's no guarantee that th...
Posted by davidstorm on 12/04/2013 - 23:15
K-5 Focus Questions
Has anyone sent their k-5 to johnsons for calibration??? If so how long? How much?
Posted by cabstar on 13/04/2013 - 00:51
K-5 Focus Questions
What I've never quite been able to wrap my head around is WHY adjustment is needed per lens. Consider: AF fine adjustment puts in an electronic offset to compensate for a difference between sensor and AF device path lengths. Sensor is "fixed", but both AF sensor and matte screen are at an adjusta...
Posted by dpm on 13/04/2013 - 07:42
K-5 Focus Questions
The main differences are DOF and image quality wide open for each lens...... basic stuff really. A sharp lens wide open such as the 50mm A f/2.8 macro (obviously used in manual focus) will trigger the green hexagon differently than a poor lens wide open such as some 50mm f/1.7-f/1.9's. '
Posted by Algernon on 13/04/2013 - 08:16
K-5 Focus Questions
The positive point is that this professional feature is available even on lower priced Pentax cameras. It's needed mostly for third party lenses I would imagine. I haven't found a Pentax lens yet that needed adjustment. No doubt I will one day. I don't see anything negative about something being ...
Posted by Smeggypants on 25/04/2013 - 22:43
K-5 Focus Questions
Out of interest are there any k-5 owners who have spot on focus with all their lenses. Since owning the mkii all my lenses are spot on razor sharp with no adjustments needing to be made, which means all my lenses are fine. Yet both my previous k-5 needed so much tweaking plus and minus I am begin...
Posted by Smeggypants on 25/04/2013 - 22:45
