Search results for 'back focus' - page 630
Tokina SD 28-70mm f3.5
I would be interested to see some results from the ME Super / Tokina combination. I have just bought for £2.50 at an Auto Jumble a Pentax P30 with the Tokina SD 28-70 lens. I my surprise the camera is working( after I repaired the door catch) and the lens is coming back to life. Mike
Posted by mire on 15/10/2009 - 19:37
MZ 50 and compatible lenses ?
Any lens with a Pentax KA bayonet mount will work on your camera. The "A" is important. It refers to a setting on the aperture ring which allows the camera (rather than the photographer) to set the aperture. You can see what I mean in this picture: http://www.bdimitrov.de/kmp/lenses/primes/w...
Posted by George Lazarette on 10/04/2004 - 11:21
MZ 50 and compatible lenses ?
Just seen that Ffordes presently have an SMC Pentax-A 1:4 100mm macro going for £225, and a 1:2.8 28mm for £65.00. Both superb lenses in superb condition (they say). Problem solved! Both manual focus, but autofocus is wasted on wide-angles, and seldom important with macro (IMHO). You'd get t...
Posted by George Lazarette on 10/04/2004 - 11:36
New user, looking for advice please
Hi all Have had my p30 for about 10 years now and started with a pentax zoom (poss 28-80mm with quite a cool little macro option), which died after some years because of Peruvian sand. I currentlly have a centon 35-80mm lens which my dad bought for me which after only a couple of years is gettin...
Posted by richard_cockshott on 14/04/2004 - 20:08
New user, looking for advice please
Richard, I'd suggest you checkout the second hand suppliers: www.mxv.co.uk www.parkcameras.co.uk www.ffordes.co.uk www.lcegroup.co.uk www.clocktowercameras.co.uk They usually have a nice selection of manual focus Pentax (and compatible) lenses. You should be able to get some nice replacem...
Posted by MattMatic on 14/04/2004 - 21:10
meaning of the labelling of lenses ?
Hi Rosa, The f stop relates to the maximum aperture of the lens. In the case you qoute the F2.8 lens will let in twice as much light. This means you can use twice the shutter speed or a slower film. This is particulary useful in low light situations. On a "normal" well lit day, there would be no di...
Posted by Kim C on 15/04/2004 - 10:28
mz 7 smc m2.8 28mm
Hi Grahamb, I would certainly agree with George's comments having had experience of 4 of the Pentax 28mm lenses. As a matter of interest I have put my thoughts on them below. As George says many of the comments in Stan's are a bit hyper critical and to a certain extent based on benchmark tests rath...
Posted by Kim C on 22/04/2004 - 15:34
mz 7 smc m2.8 28mm
Hi Kim, Yes, thanks that helps a lot. Just one thing, you said if I don't have depth of field preview (I don't) to just focus as normal. Surely then I'd no longer be focusing at the correct distance, or do you mean I focus normally to see DOF and then re-focus on the DOF scale markings? I'm a...
Posted by grahamb on 23/04/2004 - 21:40
mz 7 smc m2.8 28mm
As a rule of thumb for hyperfocal distance, focus one third of the distance into a scene. So, if you want everything sharp from foreground to background, don't focus on infinity and don't focus on the nearest point, but one third of the way in between. Using a small aperture this will work most of t...
Posted by johnriley on 23/04/2004 - 23:05
100 mm F3.5 Macro
Just got back slides using the new lens. Just as you wrote, Mr. Riley. Very nice, indeed. Cheers, Bob
Posted by bobinarabia on 07/05/2004 - 18:52
Promaster Glass, Any Thoughts
Kimbo I see from your post's you are from Coventry. Which part? I spent my young childhood in Belmont Rd next to the canal (I fell through the ice in 63, got pulled out with a garden rake by a friends father), railway and the BMC factory (long gone), went to Edgwick Primary before circumstances l...
Posted by McBrian on 10/05/2004 - 19:28
M Lens With ZX50 (MZ50)
I don't have an MZ50, but I THINK the answer is this: You can use non-A lenses (ie K & M and certain third-party lenses) only at full aperture, because the camera can't stop the lens down properly at the instant of taking the picture. What I think you CAN do is use most screw-mount lenses with...
Posted by George Lazarette on 12/05/2004 - 09:59
M Lens With ZX50 (MZ50)
I tried an M series lens on a MZ50 body. I found that altering the f stops had no effect on the camera read out. I tried in all camera modes. I also tried a Sigma auto focus lens and had the same result when altering the f stop ring. However when the Sigma lens was set to A all modes worked. I bel...
Posted by grahamwalton on 12/05/2004 - 19:32
Lenses for Pentax SF7
I have a Pentax sf7 with an SMC Pentax 28-80 zoom lens. I find this quite heavy to carry around. Would it be sensible to buy a standard 50mm lens for this camera or would a 28mm one be better for general use ? Could anyone suggest a not too expensive one ? Also does a new lens have to be auto-focus ...
Posted by Anonymous on 16/05/2004 - 17:06
Lenses for Pentax SF7
You can use any Pentax K mount lens, manual focus or autofocus. Do you need a zoom lens? If so, how about a modern light version such as the 28-70mm F4 FA which is small, light and excellent. If you want a fixed focal length this depends upon your style of photography. Personally, if I were ch...
Posted by johnriley on 16/05/2004 - 19:34
Lenses for Pentax SF7
I use a SF7 with the pentax 35-105mm zoom,which is quite light and a good performer although limited as regards maximum aperture. I also use a 28mm SMC manual focus lens,many of which can be found quite cheaply, especially the f3.5 model.With a wide angle lens focus is not as critical as with longer...
Posted by Anonymous on 26/08/2004 - 21:56
Lenses for Pentax SF7
It's always worth having a 50mm lens. It will almost certainly be the fastest and best quality lens you will own, and second-hand prices for manual focus ones are extremely low.
Posted by George Lazarette on 27/08/2004 - 02:52
Best lenses for...
Hi, Just to add to what Matt said. The 28mm FA is different optically to the earlier F version and performs alot better (5 elements in 5 groups rather than 7 in 7). Having said that the F version is no slouch but if you have the choice go for the FA. It also has a wider focus ring and is easier to ...
Posted by Kim C on 24/05/2004 - 12:15
Best lenses for...
Hi I would heartily recommend the 50mm, I have the FA 1.4 and the K-series 1.7, both are fantastic lenses - whilst the FA 1.4 doesn't really appear second-hand very often (I struck lucky, £60 with really good UV filter and hood from Jessops, of all places!) the K f1.7 is everywhere, you should be...
Posted by mattie on 14/06/2004 - 18:46
Best lenses for...
Hi! Thanks for all the answers about lenses... I bought some lenses and stuff over the eBay and I were pleased. Lenses: Cosmicar 70-200 f/3.5 - good, sharp... Pentax SMC- A 50mm f/1.7 - very good Pentax SMC- A 35-70mm f/3.5-4.5 - good Cosina MC 28mm...
Posted by Anonymous on 30/06/2004 - 11:41
