Search results for 'back focus' - page 680
"Upgrade" at zero cost!
It can be useful if you're shooting a series of pics with an off-centre subject - you select the focus point which corresponds with the subject you want to focus on, compose the picture as you want it and then fire away. Yes, you can keep focusing with the centre sensor, then recompose, but if yo...
Posted by Daniel Bridge on 01/09/2007 - 23:07
"Upgrade" at zero cost!
While I'm owning up to idiocy, a little warning about the K10D - which is great, by the way. For reasons I don't understand, you can set the part of the screen which it focuses on to various areas. When I first got it, I din't know about this and - somehow - must have set it for an off-centre spot. ...
Posted by Mannesty on 02/09/2007 - 07:56
"Upgrade" at zero cost!
I think Matt has had an experience where a filter shattered and almost destroyed the front element of one of his lenses. Not once... but twice :roll: :roll: Now it's hoods always. They cost as much as a good filter, but they don't splinter nearly as much and protect the lens far more! but can ...
Posted by MattMatic on 10/09/2007 - 08:28
SMC M 200mm f4 sale advice
I will deliver it personally :wink: Yeah, of course you will :D Good luck, my experience is that great lenses can be bought cheaply when they are offered as part of a kit, as this one is. Chances are you'll get most of your money back selling the surplus kit. BTW, I'll not be bidding, just i...
Posted by Mannesty on 04/09/2007 - 11:50
SMC-FA 80-320 diagram
Sorry Matt, my searches on the FA 80-320 only came back with your post and a problem with 'A' position contacts. The price of these has been rising staeadily over the last few months. I believe one was sold on EBay last weekend for over £130, so a £30 repair is probably worth it. I guess it dep...
Posted by stevejcoe on 04/09/2007 - 08:41
SMC-FA 80-320 diagram
http://cgi.ebay.co.uk/SMC-Pentax-FA-80-320mm-f4-5-5-6-Auto-Focus-Lens_W0QQitemZ160153232633QQihZ006QQcategoryZ48558QQssPageNameZWDVWQQrdZ1QQcmdZViewItem £87 and 4 days to go
Posted by stevejcoe on 04/09/2007 - 09:39
SMC-FA 80-320 diagram
Tried to get Pentax UK to give me a diagram... gave up in the end :roll: Had a little time this morning, as well as a small brainwave about how the lens fits together... and managed to repair the 80-320mm :D Hint: underneath the rubber focus ring are three screws that remove a collar. Undernea...
Posted by MattMatic on 24/10/2007 - 21:45
SMC-FA 80-320 diagram
Here's a quick gallery of the steps: http://www.pbase.com/mattmatic/smcpfa80320 Kim - feel free to download and PDF if you want ;) Hope this helps! As usual: absolutely no responsibility is taken or assumed. You use this information at your peril :P (But it got my lens back in working order...
Posted by MattMatic on 26/10/2007 - 16:10
SMC-FA 80-320 diagram
I don't think i would be game to do it myself. I would probably put the elements in back to front and leave my keys or something inside the barrel :? :lol:
Posted by Clarky on 26/10/2007 - 17:22
SMC-FA 80-320 diagram
Thanks Matt you are too clever for your own good :wink: Fortunately, not too clever for our own good though. It is scary, though. :D You can just see it, can't you... "Ooh my lens has fungus.... but that's no problem for my super powers. I'll just dismantle it (5 mins), remove it an...
Posted by ChrisA on 26/10/2007 - 17:29
SMC-FA 80-320 diagram
I'm much more comfortable having a go at a Pentax lens ;) Yeah, well. I had a go taking apart a Sigma A 28-200 manual focus zoom. I got it for almost nothing on eBay, but I was still a bit disappointed when about 4 days after it arrived, the aperture stuck open. Cosmetically it wasn't going to wi...
Posted by ChrisA on 30/10/2007 - 22:05
SMC-FA 80-320 diagram
Hi Matt I have taken my fa 80-320 apart and have fixed loose board but in your pics couldn't find pics putting copper bars back in place if you had some pics it would be greatly appreciated. or a little how to Thanks: Bud
Posted by budzcars on 25/02/2020 - 17:17
How to fit a vivitar lens?
It looks as though this lens was designed for Ricoh cameras. Although Ricoh used the Pentax K mount, they added some features of their own, like the pin that Steve alludes to. This is positioned in just the right place to foul the AF actuator on a Pentax AF camera. Generally, Ricoh-fit lenses...
Posted by Clarky on 04/09/2007 - 00:37
How to fit a vivitar lens?
I seem to recall having a Tamron adaptall mount a few years back that was Pentax & Ricoh fitting. It nearly jammed on one of my AF bodies (can't recall which one) but worked fine on the MF ones.
Posted by niblue on 04/09/2007 - 15:51
Tokina AF 28-70 f.2.6-2.8 AT-X 270af Pro II issues ??
I would say the first thing to do is give the contact a quick clean, a soft cloth will do, just in case there's something on them that's preventing communication between the camera and lens. Also, give the aperture ring a wiz back and forth, and make sure it's properly seated in the 'A' position....
Posted by Daniel Bridge on 03/09/2007 - 18:05
Tokina AF 28-70 f.2.6-2.8 AT-X 270af Pro II issues ??
sorry, I mean the A mode on the lens ;) thx.. i'll try, and then get back to you ;)
Posted by Leech on 03/09/2007 - 18:30
Tokina AF 28-70 f.2.6-2.8 AT-X 270af Pro II issues ??
What am I doing wrong ? You are putting a Tokina lens on a Pentax camera. So are you, given you've just bought a 16-50 F2.8, even if it does have Pentax badges on... :roll: I've had 3 Tokina ATX-Pro lenses for many years, including the 28-70 F2.6-2.8 and not had compatability problems with any ...
Posted by niblue on 04/09/2007 - 10:56
Tokina AF 28-70 f.2.6-2.8 AT-X 270af Pro II issues ??
ok, I'll look into it again, when I get home from work. I did notice the auto/manual focus ring change. Heh.. :lol: The auto fokus was working the first minutes it was on the camera. But now only the manual focus works...
Posted by Leech on 04/09/2007 - 11:13
16-50 f2.8 Availability
Hello, I'm new to this forum so forgive me if I've missed a post on this subject, although I did try a search. I've ordered the above lens for my K10 from a local shop here in Edinburgh and the latest news is it will be available in September. Spoke to Intro2020, the pentax distributor, and they ...
Posted by PeterM on 04/09/2007 - 09:27
Using the 10-17mm Fisheye
I've had the 10-17mm fisheye for a little over a year now and I continue to be impressed by it, especially in terms of colour rendition, sharpness and flare resistance. What I hadn't realised though was that if you keep the horizon across the centre of the frame you can get ultra-wide landscapes (wa...
Posted by niblue on 04/09/2007 - 17:30
