Search results for 'back focus' - page 1182
Tamron 17-50mm f2.8 - between a rock and a hard place
I have used a Tamron 17-50mm f2.8 with a K30 without issue for about a year, but only after having the Tamron lens recalibrated, under warranty, by Intro2020 so that it would focus properly on the K30. This involved a change in the firmware board, as firmware updates cannot be uploaded to the lens ...
Posted by andrewk on 19/10/2016 - 08:22
Tamron 17-50mm f2.8 - between a rock and a hard place
page on RiceHigh's blog may explain some of the anomalies of fine focussing. The comments suggest that Pentax only support Pentax lenses with an identifiable lens ID for the Pentax F series AF lenses or later and do not test Pentax cameras with 3rd parties lenses. Also of note is that the focus ...
Posted by JAK on 19/10/2016 - 13:03
Tamron 17-50mm f2.8 - between a rock and a hard place
Just pulled the trigger on a Pentax 16-85mm for the K70 - so problem solved (hopefully). Andrew Great lens - now my preferred zoom for normal APS-C work. Just regarding the focus adjustments again, the focus point for a zoom can vary slightly over its range, so get it right at one end and it w...
Posted by JAK on 19/10/2016 - 15:22
HD Pentax-DA 55-300mm F4.5-6.3 ED PLM WR RE - No reviews
I just got the PLM to replace the first-gen 55-300 (a snap at £250 on Black Friday from UK Amazon) and although no opportunity to go out shooting yet, it feels very good on the K-3II. The zoom ring is stiff but less so than the original was. It focuses closer with very snappy quiet focussing that do...
Posted by microlight2010 on 04/12/2016 - 10:00
Sigma 150 - 500 help needed.
Hi all. I have a sigma dg 150 - 500mm f5-6.3 apo hsm, which wont auto focus properly. It has been fine up till this week (i dont use it very often though), but all of a sudden it seems to be really hunting for focus, then when it stops hunting, subject is not in focus....nowhere near! I use it o...
Posted by scarr1 on 29/10/2016 - 18:30
Sigma 150 - 500 help needed.
You might want to take a look at my post on the first page of about my experiences with the K-5 & K-3. OTOH, there may be something wrong with the lens, in which case you should probably contact Sigma Imaging at Welwyn as they do a great job of servicing their lenses, are not expensive (the me...
Posted by jeallen01 on 31/10/2016 - 17:17
Sigma 150 - 500 help needed.
I used to own the same lens but can't remember whether it had a focus limiter.......check that just in case...
Posted by ilovesaabs on 31/10/2016 - 20:25
pentax lens on sony nex 5?
With adapters "can be" is the phrase. Although I don't have specific knowledge of this combination it would be a good idea to check how much functionality will remain. Results in an optical quality sense will be as good as the lens and camera can provide, but in a usability sense there may or may...
Posted by johnriley on 02/11/2016 - 09:16
pentax lens on sony nex 5?
The lenses will be strictly manual focus/manual aperture only unless one of the special/expensive self AF adaptors is used. In-camera focus-peaking and magnification will help with manual focus. Likewise, any Pentax lens without an aperture ring will require one of the adaptors with built in diaphra...
Posted by smc on 04/11/2016 - 15:28
pentax lens on sony nex 5?
I have a Fujifilm X-M1, a camera which is very similar to the Nex ones, and I use it only with lenses with other mounts as I have no Fuji lenses. I have various adapters but as most of my lenses are Pentax, that's mostly what I use on it. The combination is always manual focus and for exposure can...
Posted by Jonathan-Mac on 06/11/2016 - 08:27
Lensbaby 2.0 tips?
Thanks bill. Had a little play and dang it can be hard as as soon as you've found the sweet spot and it's in focus you move a micro muscle and it's gone! Learning curve ahead! May even buy the wife some nice flowers, cause I love her ...... :lol:
Posted by cardiffgareth on 11/11/2016 - 15:44
Lensbaby 2.0 tips?
Gareth... as promised, here are a few LensBaby shots... not the greatest, but it'll give you some idea... I have the Composer Pro, which I got off ebay... I tend to use it when I fancy shaking things up a bit... I've tended to have the most success with it when using it as a tilt shift lens, or for ...
Posted by thingsthatihaveseen on 20/11/2016 - 11:14
Lensbaby 2.0 tips?
Thanks Bill & JR. Appreciate the images, the effect can be pretty cool 8) When back up and running I'm fancying taking it to Cardiff when it's heaving with people and seeing what I can get then. I'm hoping also that when the festive season is here and the tree is up then the Lensbaby should ma...
Posted by cardiffgareth on 20/11/2016 - 21:11
SDM lens & camera's focusing switch
This might seem like a daft question to some, but can anyone advise me, with regard to using a SDM lens…….. When the focus selector switch on the lens is switched to AF, what position should be selected on the camera’s focus selection switch? I have a Pentax K30 with AF.S/C/MF settings, I don’...
Posted by unhappysnapper on 15/11/2016 - 15:26
SDM lens & camera's focusing switch
For auto focus both switches need to be on AF. If either or both are on MF that's what you'll get. If you use back button focussing rather than the shutter release focussing you get the best of both worlds. The lens will focus when you press the rear AF button, but will not try again when you pre...
Posted by JAK on 15/11/2016 - 15:41
SDM lens & camera's focusing switch
just note when you disable shutter release focus it disables CIF as well, should you wish to use it shutter release focus has to be enabled. found that out after thinking it had gone wrong when i switched to back button focus
Posted by redbusa99 on 15/11/2016 - 16:14
SDM lens & camera's focusing switch
For auto focus both switches need to be on AF. If either or both are on MF that's what you'll get. If you use back button focussing rather than the shutter release focussing you get the best of both worlds. The lens will focus when you press the rear AF button, but will not try again when you pre...
Posted by unhappysnapper on 15/11/2016 - 17:15
SDM lens & camera's focusing switch
just note when you disable shutter release focus it disables CIF as well, should you wish to use it shutter release focus has to be enabled. found that out after thinking it had gone wrong when i switched to back button focus Thanks for the info...much appreciated
Posted by unhappysnapper on 15/11/2016 - 17:22
SDM lens & camera's focusing switch
just note when you disable shutter release focus it disables CIF as well, should you wish to use it shutter release focus has to be enabled. found that out after thinking it had gone wrong when i switched to back button focus In fact that's not true. Put camera or lens in MF, press and hold back af ...
Posted by gfurm on 16/11/2016 - 08:23
Some comparisons of 135mm lenses
I did this simply for my own purposes but I remembered that someone asked, a while back, "What's all this business about lenses producing nice/poor/ so-so colour. Surely, colour is colour?" Well, it isn't, as these show. All are untouched out of the K3 to discover which is "the best" (if such can be...
Posted by davidwozhere on 19/11/2016 - 00:16
