Search results for 'back focus' - page 1025
Samyang 14mm f2.8 experience
Hi Bjorn, I had this lens for while to play and it is really very very good UWA lens. But I didn't keep it, because I use polarizer and ND filters most of the time with natural shots and due to front element of samyang and fixed hood there's no way to put the filter on. Other problems is that it has...
Posted by kingfisher on 03/02/2012 - 07:44
K20D Which Lens Please
I have recently bought a K20D it's firly new am mainly shooting in M (manual) mode. I find myself mostly using the Sigma 17-70mm and Sigma70-300mm APO but on both bodies I prefer the image quality of the K10D to the K20D the lens seen to focus quicker (I think) on the K10D. I have read a lot of t...
Posted by Spacus on 31/01/2012 - 15:10
K20D Which Lens Please
Hello Spacus, you have some great advise above from the beautiful Pentaxians on this Forum. I am responding as I have the Sigma 70-300 APO and a K20D bought in early 2009 from B&H New York. a) the K20D remains one of the most popular DSLRs yet. There is some truth in the saying "you are buying some...
Posted by nanhi on 01/02/2012 - 05:22
Lens cleaning (internal)
Just wondered if anyone could help me out. I bought a vintage Sigma lens on ebay that was meant to be in superb condition - however it arrived today and the inside looked more like a petri dish! Annoyingly my m42 adapter is still in the post so I've not been able to check the image qualit...
Posted by Radlynx on 31/01/2012 - 16:36
Lens cleaning (internal)
IMHO straight back to the seller, unless the description was accurate.
Posted by johnriley on 31/01/2012 - 16:51
Lens cleaning (internal)
Yes, back to seller first :) If not, apparently fungus can be cleaned with Pond's Cold Cream :D ;) Matt
Posted by MattMatic on 31/01/2012 - 17:07
Lens cleaning (internal)
I did pay by paypal yes - the only reason I'm looking at my options really is the relative amount of money I'll get back once I've paid to have the lump of metal sent back.. You've probably guessed its a zoom.. there's also a macro focus ring as well so even more moving parts to play with! All in...
Posted by Radlynx on 31/01/2012 - 17:57
Lens cleaning (internal)
I did pay by paypal yes - the only reason I'm looking at my options really is the relative amount of money I'll get back once I've paid to have the lump of metal sent back.. You've probably guessed its a zoom.. there's also a macro focus ring as well so even more moving parts to play with! All in...
Posted by pianoman on 31/01/2012 - 18:06
Lens cleaning (internal)
Only try dismantling it if you are not afraid of losing it. I have succesfully cleaned some old Takumars but ruined a Takumar 200mm F4 as I could not re-assemble it. Best bet is send it back for a refund, or argue with the seller and get a load of money knocked off, then try cleaning it. If it cl...
Posted by davidstorm on 31/01/2012 - 18:32
Lens cleaning (internal)
Do not worry about fungal spores infecting any other equipment. There's a lot of rubbish spouted about fungus in lenses and 'infecting' other items. The fact is that the old style leather cases that lenses were kept in were a breeding ground for fungus, especially if lenses were put away damp, or ...
Posted by davidstorm on 28/02/2012 - 19:41
DFA 100MM 2.8 macro
Just had an email from MESSUPS saying the lens i had on back order is now discontinued and they will have to cancel my order as they are no longer manufactured.So i suppose i will have to look else where for a 2.8 macro
Posted by geordie01 on 01/02/2012 - 16:10
WANTED BIG TELEPHOTO FOR PENTAX!
I have the A*300mm, I intended to use it with the 1.7 AF converter but never got round to buying one, I tried it with one borrowed from a forum member but didn't have it long enough to form an opinion. On its own I find the A*300 is difficult to focus quickly unless its already near (the focus me...
Posted by fatspider on 03/02/2012 - 13:48
New Pentax lens roadmap
N_Tops, the 40mm XS lens is at the bottom of the current lens lineup, near the FA 31mm Ahh missed that! But I was looking to the future, I hope they limit the number of XS lenses and focus on DA/FA, but I can't believe they dont plan to release another XS lens in 2012/13.
Posted by n_tops on 02/02/2012 - 17:08
New Pentax lens roadmap
What's this for, Mike? The K-5 focus points cover too much space, when you use (for instance) the centre point you get quite a large area around it that the camera can focus on instead of your intended subject. With Canon and Nikon you get more points which are tightly packed and so focus (and track...
Posted by Mike-P on 04/02/2012 - 19:53
Pentax FA F4-5.6 70-200mm
I've just bought this lens second hand and as it is an old lens, I find it doesn't use auto-focus. But when I first connected it, I can't fire off a shot. The shutter button does nothing. Am I doing something wrong? Do I have to do something else once I've fitted the lens? I'm a new DSLR user so...
Posted by kingkerouac on 07/02/2012 - 09:37
Pentax FA F4-5.6 70-200mm
Have you inadvertemtly set the camera to Manual Focus when changing lenses?
Posted by gartmore on 07/02/2012 - 09:52
500mm lense for a K20D
Hi Chris Long lenses are generally difficult to use effectively, and good long lenses are ££££. Sigma do a range of zooms that will take you to 500mm (a 50-500, a 150-500 & a 170-500 IIRC) all out of my price bracket (typically £500-1000) Top quality long Pentax primes, are rare & even more expens...
Posted by petrochemist on 07/02/2012 - 13:02
Pentax announce 5 new lenses + k adaptor for Q
I know they had white lenses in the past but it seems a shame to go back to it. I suppose it makes money for the camouflage salesmen.:wink:. Better get that new deep fat fryer soon Mike!
Posted by Gwyn on 08/02/2012 - 09:44
Pentax announce 5 new lenses + k adaptor for Q
All manufacturers seem to do it. One theory is that the large barrel has quite a bit of potential for expansion and contraction. White reflects the heat. It also explains why the lenses focus "beyond" infinity, to allow for temeprature variations.
Posted by johnriley on 08/02/2012 - 09:48
Pentax announce 5 new lenses + k adaptor for Q
I know they had white lenses in the past but it seems a shame to go back to it. I suppose it makes money for the camouflage salesmen.:wink:. And that's exactly what I'll do post haste ! White ? Ugh. I would've loved it if it was the same as the silver FAs with PENTAX written in bold and black on th...
Posted by Frogfish on 08/02/2012 - 10:27
