Search results for 'back focus' - page 719
Bargain Pentaz smc-f 50mm 1.7 lens Broken :(
Yeah dosent spring back, is it expensive to fix!! Cracking lens quality though much better then my kit lens and teaches you to move about more to get a better shot then using a change in the focal length thanks for the advice
Posted by ayazd on 23/07/2008 - 18:32
Is this Fungus?
Having never seen it before I would like to know if it is. I bought the lens on Ebay but when it arrived this morning there was this on the back element which will not clean off. I presume it is but just want to make sure before I contact the seller. Thanks.
Posted by Mike-P on 24/07/2008 - 18:32
Ebay prices.
As well as having a flatter field, the 1.7 is smaller and lighter than the 1.4. I don't think there is anything silly about paying £100 for for a second-hand F or FA 1.7 if it is likely to be in excellent optical condition. They are not as common as the manual-focus versions, so naturally peop...
Posted by iceblinker on 28/07/2008 - 23:14
16-45. Wow
Are there any sites with high res samples from the 16-45?I have been looking but failed to find much. I took this the other day while just trying to see how close it would focus. This is only 1/3 of the original size though.
Posted by Mike-P on 28/07/2008 - 19:14
Pentax DA* 60-250 F4 and other questions
Warehouse Express have them advertised for £899!......Sorry folk!..when you click add to basket, it comes up please place on back order!...I was getting rather excited for a moment..lol...........Ken
Posted by beginner on 17/11/2008 - 19:56
Recommend somewhere to buy a Sigma 10-20 ?
I bought a Ricoh GR-D from Bristol Cameras back in April. Five days after the confirmation of despatch email it still hadn't shown up so I checked the (DHL?) website to see it marked as "Delivery Refused". I rang the courier who gave me the time they'd attempted delivery and the address they'd gone ...
Posted by hefty1 on 02/08/2008 - 00:55
Recommend somewhere to buy a Sigma 10-20 ?
I tried to use Bristol cameras for a 18-55mm MKII and after ordering I waited .. and waited .. and waited for delivery. Tried emailing and phoning .. in the end made contact to be told they were out of stock and they would put it on back order. I cancelled. Wouldnt use them again.
Posted by Mike-P on 02/08/2008 - 07:15
Recommend somewhere to buy a Sigma 10-20 ?
[quote:3496ace15f="ikillrocknroll" Apologies for suggesting it, however as you say, it wasn't their fault[/quote] No problem... My new Sigma 10-20 has just arrived from SRS & it's time to give it a try...I spoke to Sigma regarding testing & they recommended "real world" shots, I mentioned...
Posted by simonkit on 14/08/2008 - 18:33
Extension tubes and K10D focal lenght settings
As the focal length won't actually change (just the close focus ability of the lens) I would suggest keeping it at 50mm regardless of which combination of tubes you're using.
Posted by hefty1 on 02/08/2008 - 00:21
DA 70mm f2.4 - play in barrel
I recently purchased a DA 70mm ltd lens and have noticed that there is play in the barrel ever though it only extends a short distance it is noticeable both side to side and forward and back. Much more than my 50mm lens. Is this normal. As this lens is supposed to be of a high build quality I think...
Posted by kiwao on 03/08/2008 - 12:33
DA 70mm f2.4 - play in barrel
I'm sure it's the camera. We had two *istDS bodies and both were spot on with all lenses. Are you using centre-spot only focus? Multi-point can be a bit annoying.
Posted by johnriley on 06/08/2008 - 07:55
DA 70mm f2.4 - play in barrel
i get more consistent focussing with my old DS than with the K10. What do people mean when they say "consistent focusing"? Is it: - speed of AF lock - focus accuracy in final image - lack of hunting in low light - something else? I never had an AF SLR prior to the K10D, so I have nothing...
Posted by ChrisA on 06/08/2008 - 09:03
DA 70mm f2.4 - play in barrel
Good question. I would say it means the system locks on instantly to the correct point of focus. And then the shutter releases with a continuing press of the shutter release.
Posted by johnriley on 06/08/2008 - 09:26
DA 70mm f2.4 - play in barrel
One of the reasons I thought that I was getting inconsistent focusing was because of what I read in the link below. Even though its is a different lens it could still be relevant. In good conditions my 50mm lens in centre point focusing is much more consistent than this 70mm lens. My point...
Posted by kiwao on 07/08/2008 - 08:29
Adaptall 2 70-210mm
Sockpuppet, I've not used the Vivitar, so can't tell you how they compare, but I do own the Tamron 70-210mm f/3.5 which I rate pretty highly. It gives excellent results on film, and I've been impressed with how it copes on digital. It does tend to struggle with heavily backlit scenes, producing p...
Posted by jps on 04/08/2008 - 18:38
Adaptall 2 70-210mm
Thanks Jonathan. It was the close focus that swung it for me agains the Adaptall 2 80-200mm f2/8. I also bought a 2x SP adaptall 2 teleconverter for another lens I have so will be interesting to see how it performs with that. Mike
Posted by Mike-P on 05/08/2008 - 11:47
Stark raving mad. (another Ebay thread)
I got one with an SFX kit I picked up on E-bay which included 2 smc f series lenses 70-210 and 35-70 a bag and a sigma flash for 80quid. When i took off the top cap it was apparent it was for a Nikon. That would explain why it looked so new and why it wasn't mentioned in the listing :?: Put ...
Posted by Clarky on 05/08/2008 - 17:59
Stark raving mad. (another Ebay thread)
Just to twist off line a little I have a Kenko teleplus 2X MC7 - same contact layout so hopefully for future upgrades maybe I'm ready? (It cost £29 from local LCE) returning to original post: proves again some people have more money than sense. I know this hobby/life can be an obsession but!!!...
Posted by alan S on 07/08/2008 - 18:43
lens database
Welcome to the forum. Any Pentax K (bayonet) mount lens will work with your camera. Some restrictions apply however. You'll get a reasonable list of the restrictions from the K20D camera manual which you can download from www.pentaximaging.com. My recommendation would be to stick to lenses hav...
Posted by Mannesty on 07/08/2008 - 21:09
Proper Hoods
Hi, I have been experimenting with all sorts of metal hoods for my Contax Zeiss lenses for the last few years, as the Contax ones are huge and un-wieldy. I have only found B+W and Heliopan who make 3rd party 'branded' ones. Both are excellent and tricky to find, as well as being a little expen...
Posted by bretbysteve on 09/08/2008 - 15:05
