Search results for 'back focus' - page 709
Shopping for old lenses in and around Edinburgh
Pete, I have both kinds. The ones that add thickness to the whole set-up by covering the body flange act as a bit of a macro ring and you lose infinity. They are inexpensive. The one(s) that sit inside the body flange (flush) don't affect infinity focus, are much harder to make and cost mor...
Posted by Mac on 11/05/2008 - 20:59
ANy way to remedy this? Garbage inside lens...
Anyone know how to remedy something like this? Not a 100% crop, this is just a scaled down image. This is with my DA* 16-50 lens! I can open the aperture and look through the lens and see the crap stuck to the glass inside. Those are some pretty poor seals if it lets that sort of crap in!...
Posted by amoringello on 11/05/2008 - 23:29
ANy way to remedy this? Garbage inside lens...
I would say something that size must have come from something inside the lens itself, unless it's just on the rear element. If it was from the lens itself, then it's a manufacturing defect and it should be repaired/replaced for you. What does it actually look like? A smear of grease? A fibre? ...
Posted by Daniel Bridge on 12/05/2008 - 08:39
ANy way to remedy this? Garbage inside lens...
The shop by law must replace it if it not fit for purpose!........dont be fobbed off with them sending it back to Pentax,they sold it ,so it is their responsibility!............If you have no joy go to your local trading standards office and they will sort it for you.................
Posted by beginner on 18/05/2008 - 00:57
sigma 400mm 5.6
I assume the camera works properly with other lenses? Try setting a small aperture and hitting DoF preview (with preview method set to Optical if you don't usually have that). If the lens is stopping down then the view through the viewfinder should darken. If the lens is not stopping down, tak...
Posted by Mongoose on 12/05/2008 - 09:25
Help Should I sell my Limited lenses ?
Hi all, I've had a Pentax DS since they came out about three and a half years ago. I use a variety of lenses on it with the most used being the 50mm F1.4, 50mm Macro, 16-45 zoom and 135mm F2.8. They all work fairly well and seem to focus ok most of the time. So I've recently added to these the FA...
Posted by JohnMcD on 12/05/2008 - 22:59
Help Should I sell my Limited lenses ?
Seeing as though most of the rest of us are trying to afford / collect the limiteds, the simple answer would be, no! Personally, I do not know why you seem to be having problems focussing with the limiteds. For all 3 being out that much, that often, would normally suggest the camera at fault! In ...
Posted by Unlocker on 12/05/2008 - 23:54
Help Should I sell my Limited lenses ?
My wife has the *ist-DS and I have the *ist-D and a K10D. One of the things that gets me with the *ist-DS is the focus point is usually set to automatic - and the camera often gets it wrong :roll: Personally, I prefer centre-only focus. The *ist-DS has a menu option to change to centre only (and...
Posted by MattMatic on 13/05/2008 - 08:36
Help Should I sell my Limited lenses ?
Replacing the *istDS has to happen sometime, maybe sooner, maybe later, but it won't last forever. So how about selling the *istDS and putting the cash towards a K10D. The price is pretty good just now. And the Limited lenses are really too good not to use and enjoy. Hi John thanks for the rep...
Posted by JohnMcD on 13/05/2008 - 14:36
Help Should I sell my Limited lenses ?
dear John, In all honesty, I think that you should seriously think about buying a new camera. As George said in a post around here, it is always worth to buy a second hand lens, but rarely a second hand camera. The selling price of those 2 Ltd lenses is still very high, and unless you have t...
Posted by JohnMcD on 13/05/2008 - 14:41
Help Should I sell my Limited lenses ?
My wife has the *ist-DS and I have the *ist-D and a K10D. One of the things that gets me with the *ist-DS is the focus point is usually set to automatic - and the camera often gets it wrong :roll: Personally, I prefer centre-only focus. The *ist-DS has a menu option to change to centre only (and...
Posted by JohnMcD on 13/05/2008 - 14:54
Help Should I sell my Limited lenses ?
Hi John, I think you've misunderstood what is being said here. Mainly what Matt said! The AF is exactly the same on K10 and K20 - and aparts from the complicated (not really - its a very simple process) explanations on how to set up spot AF rathen than auto one - there is one essential deta...
Posted by JohnMcD on 14/05/2008 - 21:54
DA 55-300 - quick 1st impressions
Too early for me to comment on the "purple" issue, not had chance to reproduce similar situations where it was very evident on the Tamron... regarding focus speed it seems to perform well, a bit less hunting than tamron/sigma, although again ots very early to be sure of this. I'll ...
Posted by simonkit on 14/05/2008 - 14:02
lens or body faulty?
would someone check these full size images please? was taken from a tripod with everything perfectly square in the view finder and auto-focused. several shots all display wonky like this. and all shots display apparent back focus. shows the test chart at 45 degrees. red focus indicator we...
Posted by Darkmunk on 15/05/2008 - 13:07
lens or body faulty?
My K10D back-focussed exactly the same way ;) You use the 45 degree one and select centre focus. That way (as in your case) it focusses on the big (unmissable) black bar in the middle. With your example you read off the numbers and check what's in focus - around 30 to 40mm back is what I see. ...
Posted by MattMatic on 15/05/2008 - 13:20
lens or body faulty?
thanks Matt, i took it to the shop and they managed to get a good image of the chart (somehow) so they declared the camera good and pronounced my technique (camera shake) as the culprit!...500th second, I think not. I didn't want to fiddle with the debug menu until I had given them a chance to loo...
Posted by Darkmunk on 15/05/2008 - 13:34
lens or body faulty?
Yeah that did occur to me, but this is after the shop visit. I asked them to check the body for back focus, but they didn't appear to test it with any other lens. They were a joke, they kept my camera and 16-45 and told me they would get back to me. took a bunch of pictures outside - all out of fo...
Posted by Darkmunk on 15/05/2008 - 20:29
lens or body faulty?
The appearance of back focus will seem different based on aperture. So, if you test with a 50mm f/1.4 wide open at f/1.4 you'll really, really see any back focus issues (that's how I sorted mine - which also showed that shooting with the 12-24 was also backfocussing and is now fixed). With the K1...
Posted by MattMatic on 16/05/2008 - 06:12
lens or body faulty?
EDIT: Did some digging and found this link on . Originally from . You may find this quote useful: I've done a quick test, and YES, it works! For the English speaking world, the button captions will have question marks if you don't have the right language packs installed, but... Connect to...
Posted by MattMatic on 16/05/2008 - 06:30
lens or body faulty?
Thaks Matt, I'll check this out and get back to you.
Posted by Darkmunk on 16/05/2008 - 11:50
