Search results for 'back focus' - page 2098
teleconvertors for dummies
Hi guys I've asked a similar question before but this time i need it explained simpler :O I want to buy a da*300 some time down the line for my k-5 because the 150 500mm is starting to get on my Wick. Questions are. Can you achieve auto focus with a particular convertor. Which one? and ...
Posted by QuestionableCarrot on 21/08/2013 - 10:23
teleconvertors for dummies
As far as I know, there is no teleconverter available currently that "works" with the DA*300mm. When I say "works", I mean one that will provide good snappy autofocus. I have tried, as have others, and it seems to be down to PD-AF and SDM use. For instance, using my Kenko 1.5x PZ-AF converter, S...
Posted by eenymac on 21/08/2013 - 10:39
teleconvertors for dummies
I use a manual focus 2x (S) with my DA*300. And get some excellent results. You can use catch in focus - but set the lens switch to M and camera to AF-S, hold shutter release down and slowly focus. Or adjust focus until you get a focus confirm and then release the shutter.
Posted by Gamka on 21/08/2013 - 10:52
teleconvertors for dummies
Look no further than the Pentax SMC f 1.7x AF Adapter. It marries beautifully with the DA*300. It automatically stops down to f6.7. It 's not fully AF but once you dial it close the rest is done by the camera. There might even be one for sale in the classifieds, you'll need to go back a couple of we...
Posted by SteveEveritt on 22/08/2013 - 18:46
teleconvertors for dummies
I take it the teleconvertor on the pentax road map for 2013 and beyond is a a converter that will support auto focus! !! Just seeing this :-)
Posted by QuestionableCarrot on 23/08/2013 - 12:36
teleconvertors for dummies
Very nice Tell me this when you acquire focus can the lens continue to focus continously around the subject?
Posted by QuestionableCarrot on 23/08/2013 - 14:34
teleconvertors for dummies
When I asked the guy at Pentax/Ricoh UK to get back to me about the teleconvertor listed in the road map (the PDF) he hadnt a clue until I got this email. Hi Alistair, I am the social media coordinator and am not familiar with whether or not our road map will include the product you are looking ...
Posted by QuestionableCarrot on 27/08/2013 - 21:07
K5 partial out-of-focus problem
With my K5 + DA* 16-50 I get a falling away of focus on the right side. This is not a depth of field problem, as subject detail the same distance from the lens on the left and middle of the frame is fine. Indeed, it doesn`t seem to be an issue with subjects close to the lens, but only when focus is ...
Posted by Braunton on 23/08/2013 - 13:07
K5 partial out-of-focus problem
Sounds more likely to be the lens. If it's a function of focus it sounds like one of the elements is going out of alignment as you focus further away. Try another zoom and see if it happens with just the 16-50.
Posted by aliengrove on 23/08/2013 - 13:15
CARD LOCKED
Help! Set up my macro kit, bellows, etc., took the card out of my K5, put the images on the computer, card back in the camera & this message! What can I do???? Roger.
Posted by coker on 24/08/2013 - 14:18
adapters
If it really is K fit it will fit without any adapter. Any chance of posting a picture of the bayonet at the back of the lens?
Posted by johnriley on 27/08/2013 - 21:35
adapters
Brand: Pentax Focal Length: Fixed/Prime Type: Fisheye Focus Type: Manual Camera/Camcorder Fitting: Pentax K Bundled Items: Case, Front Lens Cap
Posted by ken2390 on 27/08/2013 - 22:26
adapters
it says its a k mount. No it will only fit in the recess but will not lock. As for drilling,as i said i am a rank novice, so would not know where to start. Thanks anyway. Hopefully the seller will take it back. :(:(
Posted by ken2390 on 28/08/2013 - 11:36
adapters
it says its a k mount. No it will only fit in the recess but will not lock. As for drilling,as i said i am a rank novice, so would not know where to start. Thanks anyway. Hopefully the seller will take it back. :(:( It's not a PK mount but if it fits in the recess it MAY be possible to use it anyway...
Posted by petrochemist on 28/08/2013 - 15:33
adapters
Yes,:oops: sorry did say i was an oldie.shall send it back to seller.No good to me. Thanks to everyone that has responded to my question. No doubt there will be more in the future.:)
Posted by ken2390 on 28/08/2013 - 16:12
Manual lens plus extension tubes - shake reduction
Thank for taking the time to reply. The link was informative, I think the general consensus was to add the extension length to the focal length of the lens. So in my case with all the tubes attached 60mm + 50 mm for the lens. I had started putting in 50mm and then putting in about 150mm. Now I sh...
Posted by screwdriver222 on 03/09/2013 - 16:30
Manual lens plus extension tubes - shake reduction
If you think the investment is justified you can't beat automatic tubes that incorporate electric contacts, that way you have (in theory) full control of the lens. Harrison Cameras, for example, do a set for £160. By the way I've seen, but not tried, using a short tube (12mm) on a long (300mm) lens....
Posted by DRM098 on 06/11/2013 - 13:33
Manual lens plus extension tubes - shake reduction
I have the cheap Ebay tubes and they work. I use them with a Pentax-M 28mm 2.8 and a Tokina ATX 35-70 2.8. The DoF is so narrow that if there is a particular feature you are trying to image its extremely hard to keep it in focus. Just slightest motion from your body or hands completely changes the...
Posted by Russ on 06/11/2013 - 14:45
Manual lens plus extension tubes - shake reduction
The DoF is so narrow that if there is a particular feature you are trying to image its extremely hard to keep it in focus.
Posted by richandfleur on 07/11/2013 - 08:35
Long exposure artefacts
Yup... Almost certainly stray light through the viewfinder... The brighter it is, and the more direct the sunlight through the back of the viewfinder, the worse it tends to be in my experience... Any way you can find to block it will do (I use a cut out piece of an old credit card)... Best
Posted by thingsthatihaveseen on 02/09/2013 - 23:34
