Search results for 'back focus' - page 980
Which Lens
To be honest, for the cameras you list I'd get onto ebay and track down something like the old Pentax-M 80-200mm f4.5. This is a brilliant lens, not horribly expensive for a decent example but very sharp and well-made. I have two which are unfortunately in need of attention for a sticky aperture mec...
Posted by Dangermouse on 01/07/2011 - 00:04
Which Lens
I'd concur with what Matt wrote here, but add that the Tamron does have an aperture ring if that's your choice of lens, manual focus will lack damping though and the focus ring is at the front of the lens, a little cumbersome IMHO. The build quality/ergonomics of the early K,M & A series lenses is f...
Posted by johnwhit on 01/07/2011 - 07:22
Pentax SMC-D FA 100mm f2.8 Macro
This is going to sound silly and I expect to be shot down in flames but unless I ask I'm not going to learn. I have the above Lens but think it is faulty, my reasoning behind this is that It will not auto or manual focus on objects more than say 20 foot away, is this normal for the lens. I know i...
Posted by richardhurst on 01/07/2011 - 09:41
Pentax SMC-D FA 100mm f2.8 Macro
It sounds like you have a faulty lens:cry: Older macros like the F and FA had a focus limiter switch but theres nothing like that on the DFA
Posted by fatspider on 01/07/2011 - 09:53
Pentax SMC-D FA 100mm f2.8 Macro
It certainly should focus on distant objects. Do you mean that the autofocus doesn't lock on to a distant object, or the image you get from the camera isn't sharp for more distant objects? Try the following: On the camera move the AF switch to MF, so that you are focussing via the viewfinder....
Posted by karma mechanic on 01/07/2011 - 09:56
Pentax SMC-D FA 100mm f2.8 Macro
This is going to sound silly and I expect to be shot down in flames but unless I ask I'm not going to learn. No need to feel this way no one wants to put you down for asking.:wink: I own the same lens and I have taken some great shots from further away than 20ft on auto focus so it sounds like yo...
Posted by sandinista on 01/07/2011 - 10:21
Pentax SMC-D FA 100mm f2.8 Macro
Can I ask another silly question. I have one of these, and there is a 'CLAMP' switch on it. I've tried moving it but it doesn't seem to do anything. What's it for? believe it stops the focus ring from moving
Posted by richardhurst on 01/07/2011 - 11:30
Pentax SMC-D FA 100mm f2.8 Macro
Can I ask another silly question. I have one of these, and there is a 'CLAMP' switch on it. I've tried moving it but it doesn't seem to do anything. What's it for? It's to lock the lens at the desired focused position i.e. so the focus does not shift. John
Posted by johnwhit on 01/07/2011 - 11:31
Pentax SMC-D FA 100mm f2.8 Macro
The clamp is to stop focus creep (lens barrel moves due to gravity) which these lenses are prone to, especially when shooting vertically, up or down.
Posted by Mannesty on 01/07/2011 - 11:38
Pentax SMC-D FA 100mm f2.8 Macro
Thanks for those replies. That's what I thought it would do, but with clamp on I could still turn the focus ring by hand. Will check again tonight
Posted by TheVicar on 01/07/2011 - 11:38
Pentax SMC-D FA 100mm f2.8 Macro
Had a play with the clamp tonight, and had to resort to RTFM :evil: The manual says that you focus manually, and then switch the clamp on. This will lock the focus... unless you turn the focussing ring, which will change it!!! The focus ring seems to turn pretty much as easily whether the clamp is ...
Posted by TheVicar on 01/07/2011 - 21:22
Which prime for general use?
If it's a 35mm lens that's on the agenda, the SMC Pentax-DA 35mm f2.4 is both excellent and a ridiculously low price for what it is. I used one recently for a fashion show and it was brilliant. Sharp, free from flare and snapping quickly into focus. For £135 or so you can't really go wrong with t...
Posted by johnriley on 01/07/2011 - 22:42
Which prime for general use?
There's no reason to avoid the DA40 - it's a very good pancake lens, and it's siblings (the 21 and 70) make for a great set. The 40 is by far the smallest physically, and solely due to its size it's fiddly to focus manually. That aside, very nice. :D Should add that it focuses quickly, with no...
Posted by i-Berg on 02/07/2011 - 00:52
Which prime for general use?
My currently most-used prime: Vivitar (Komine) 28/2 MC Close Focus Wide Angle (CFWA) which is fast, sharp, smooth, and small. MF, perfect FL on my K20D, no distortion, excellent for CIF. Mine cost US$18 a few months ago. Don't leave home without it. My other fave walkaround primes, depending on w...
Posted by RioRico on 03/07/2011 - 06:24
Which prime for general use?
My currently most-used prime: Vivitar (Komine) 28/2 MC Close Focus Wide Angle (CFWA) which is fast, sharp, smooth, and small. MF, perfect FL on my K20D, no distortion, excellent for CIF. Mine cost US$18 a few months ago. That is a miraculous price. Reasonably one would expect to pay over $100 -- tho...
Posted by rparmar on 03/07/2011 - 17:46
Need quick help on a lens that's on Ebay
Hi, Tamron 72B SP 90MM F2.8 MACRO LENS ADAPTALL FIT pentax is for sale on ebay, auction ending very soon so if anyone could answer my questions I'd appreciate it. Item number: 280702966252 http://cgi.ebay.ie/280702966252?ru=http%3A%2F%2Fshop.ebay.ie%3A80%2F%3F_from%3DR40%26_trksid%3Dm570%26_nkw%3...
Posted by dinneenp on 05/07/2011 - 11:07
Need quick help on a lens that's on Ebay
Hi, Tamron 72B SP 90MM F2.8 MACRO LENS ADAPTALL FIT pentax is for sale on ebay, auction ending very soon so if anyone could answer my questions I'd appreciate it. Item number: 280702966252 http://cgi.ebay.ie/280702966252?ru=http%3A%2F%2Fshop.ebay.ie%3A80%2F%3F_from%3DR40%26_trksid%3Dm570%26_nkw%3...
Posted by AxelLuther on 05/07/2011 - 11:52
advice on lens
Hi Jacqui Do a quick Google on Parkers Photgraphic. they are in Woolston - your side of Southampton, and have several Pentax fit AF lenses in stock. They look like they all date fromn the film era - but they will work on an *istD. Could be a cheap way of working out what lenses you really ne...
Posted by DoctorJeff on 05/07/2011 - 17:39
advice on lens
The same site has a: Contax 139 c/w 50mm f1.7 Zeiss Planar T* lens for £100 The lens alone must be worth that? Probably - if you have a Contax/Yashica body, without a lens, and want to go back to film. I have the f1.8 50mm Planar (from a Rollei SL35E) sitting in my box of junk, along with a half...
Posted by Algernon on 05/07/2011 - 18:59
advice on lens
[quote:3496ace15f="Algernon"]The same site has a: Contax 139 c/w 50mm f1.7 Zeiss Planar T* lens for £100 The lens alone must be worth that? Probably - if you have a Contax/Yashica body, without a lens, and want to go back to film. I have the f1.8 50mm Planar (from a Rollei SL35E) sitting in my b...
Posted by DoctorJeff on 05/07/2011 - 20:06
