Search results for 'back focus' - page 1060
DA 12-24 + K5 for Northern Lights
I was out on deck in -15C and lower for hours with no ill effects either. The Northern lights photos I took were over a 4 hour period at about -10C. Just be careful taking the camera back into the warm.
Posted by Gwyn on 22/09/2012 - 10:30
DA 12-24 + K5 for Northern Lights
When regarding the K-5 and cold temperatures, I don't think you have to worry. If you keep it free of any kind of moisture (watch your breathing...) you should be fine. The issue is just if you get ice on it, and forget to take precautions when taking it indoors. If you are really unlucky, your sc...
Posted by SnoozeMoose on 22/09/2012 - 17:51
Problems with M lens
Gentlemen, thanks for all your swift responses! Although I didn't make it very clear (my fault!) I suppose I'm not so bothered about the transaction itself (although I will go back and negotiate a partial refund if I keep the lens.) I need to understand if the issues could spell danger further dow...
Posted by TonyM on 21/09/2012 - 13:23
Problems with M lens
Thanks for the replies. I bought the lens with the view that I could sell on if I found myself not using it. Given that, I would definitely need to get a proper job done and tbh I don't need the hassle. I think it will go back with a note pointing out the issues for the seller when he relists. ...
Posted by TonyM on 22/09/2012 - 11:53
Sigma Wide Angles 8-16 or 10-20
Loving my 8-16, sharp and contrasty.Focus quiet and sure. Only downside is the filter issue, but several solutions are eventuating ...
Posted by Transit on 23/09/2012 - 22:58
SMC 50mm 1.7 not focusing
I have just got a SMC 50mm 1.7 m lens which I want to use on my Pentax K7 It seems really good except it will not focus to infinity. Why would this be happening as I thought it was just some lenses used with an adapter that would not focus to infinity. I look forward to your thoughts.
Posted by colinB on 23/09/2012 - 15:33
SMC 50mm 1.7 not focusing
It should focus to infinity with no problems, so it may well have been messed with.
Posted by johnriley on 23/09/2012 - 16:37
SMC 50mm 1.7 not focusing
There is no reason it should not focus to infinity, but if it has been reassembled they could easily have done a mistake when putting it back together. The easiest way to spot this is to look if the focus ring is aligned correctly. If it isn't then that is evidence that it have been taken apart...
Posted by SnoozeMoose on 23/09/2012 - 17:36
SMC 50mm 1.7 not focusing
As others have said, it sounds like it has either been taken apart or the focus ring has slipped. There are three screws that clamp the focus ring to the focus mechanism and it is possible that these are slightly loose. It is not too difficult to fix if you're comfortable wielding a screwdriver (...
Posted by sorted78 on 23/09/2012 - 21:24
TAMRON SP 90MM MACRO F2.5
Is it reflection off the rear lens element, or off the rear of the diaphragm? I rather guessed the latter, because it gets worse at the diaphragm closes. The rear element and reflectivity of the sensor is the problem. It is refered to as sensor flare. As I understand it, a sensor is more reflecti...
Posted by moose on 24/09/2012 - 22:28
Help - I urgently need to fix my M28mm F3.5!
My favourite landscape lens (apart from the 16-45) is the Pentax-M 28mm F3.5. Unfortunately, whilst shooting in the Lake District on Saturday, the aperture pin has become dislodged (the bit right inside the lens), so I can't control the aperture. It isn't broken, it has just unscrewed itself. I...
Posted by davidstorm on 24/09/2012 - 21:33
Help - I urgently need to fix my M28mm F3.5!
The lens should work like a pre-set without the aperture lever. Which means that you can set it at f/8 with focus on INF and use Av.... Free Upgrade! :mrgreen:
Posted by Algernon on 25/09/2012 - 07:59
Help - I urgently need to fix my M28mm F3.5!
Great news David :D As you asked for help I have kept quiet up to now - problem is I am quite adept at stripping lenses down it's the putting back together in a working order that I am yet to get to grips with :lol: Glad you have sorted a replacement 28:D
Posted by Stuey on 25/09/2012 - 21:08
Chinon lenses
Some more from the f1.9 ...... reminds me of the Pentax FA77mm :lol: but costs less than £20 :shock: Good build quality as well :lol: Must go and dig out my copy :mrgreen: Edit: Just dug out my copy, really smooth focus. The focus mark on the DOF scale is a very narrow 0 ..... one...
Posted by Algernon on 04/10/2012 - 12:24
Chinon lenses
Edit: Just dug out my copy, really smooth focus. The focus mark on the DOF scale is a very narrow 0 ..... one of the lens makers uses that as trade mark.... does anyone know who it is? I've seen it suggested that it is Tomioka. The 28mm f2.8 that I have doesn't have it. Andrew
Posted by andrewk on 04/10/2012 - 12:59
Chinon lenses
Hey guys back off, we appreciate our privacy with the sheep here in Wales:lol: I mean, whilst eating a roast leg of lamb with some beer and/or wine to help it down, we appreciate our privacy :D
Posted by Stuey on 05/10/2012 - 22:39
Chinon lenses
I spent some time in Mr Cads in Croydon a few weeks back, and they had a fair number of Chinons, all in reasonable looking condition. I kept asking about them but I couldn't get one positive comment out of the shop guys (all older men who've been in the business for donkeys) - they wouldn't recommen...
Posted by McGregNi on 09/10/2012 - 10:36
Chinon lenses
It's not really snobbery. When Chinon lenses were marketed in the UK they were an "own brand" of Dixons and sold at very low prices. Their quality is variable and although I'm sure some can be very good, as a general prospect they are low to middle grade. I had a 135mm f/2.8 once and it was quite...
Posted by johnriley on 09/10/2012 - 10:45
Chinon lenses
I spent some time in Mr Cads in Croydon a few weeks back, and they had a fair number of Chinons, all in reasonable looking condition. I kept asking about them but I couldn't get one positive comment out of the shop guys (all older men who've been in the business for donkeys) - they wouldn't recommen...
Posted by MikeyJay on 09/10/2012 - 12:48
Pentax K 85mm f1.8; Ideas On Value
Hi, I concurr with Kris...K85 is a superb lens....in comparison with FA77 it renders deeper blue colour, has a smoother out of focus and of course has better reach being 85mm opposite 77mm. Build of 85/1.8 is excellent and its manual focus smoothness cant be achieved by any of limiteds. On the other...
Posted by kingfisher on 06/10/2012 - 16:21
