Search results for 'back focus' - page 634
Pentax-D FA 100mm F2.8 Macro
There are three 100mm f2.8 macro lenses: 1. The SMC-F 100mm/2.8 2. The SMC-FA 100mm/2.8 3. The SMC-DA 100mm/2.8 The -F and -FA are optically the same. The FA adds a clamp to slow focus. I have the -F and it works really well with the *ist-D. They're both heavy beasts though ;) You can pick th...
Posted by MattMatic on 13/01/2005 - 11:39
Pentax-D FA 100mm F2.8 Macro
I have had a reply from Pentax UK – they are available (but it would appear hard to find, like most things Pentax :cry: ) at £449.99, don’t know if that is ex. VAT . I did mange to track on down on the pixmania.com at £398 for the 100mm and £329 for the 50mm. The price has surprised me a bit – it l...
Posted by Dave_Evanson on 13/01/2005 - 14:57
Will new Auto focuse lens work?
Hi I have a pentax MEF body in great condition. Will new Kmounut lenses autofocuse lenses focus on this body?
Posted by Anonymous on 20/01/2005 - 17:38
Will new Auto focuse lens work?
Hi Unfortunately not, the original lenses for this camera had the auto-focus motor in the lens itself, resulting in a heavy lens. Modern (all Pentaxes since the MEF) AF cameras have the auto-focusing motor in the body and AF lenses are now much lighter for it. Regards, Simon
Posted by spbatt on 20/01/2005 - 18:03
Will new Auto focuse lens work?
Ok thanks I am debate on buying a new *ist DS or a Nikon D70. Since i have manual focus lenses foor it. But tho be honist i like the nikon better
Posted by Anonymous on 20/01/2005 - 18:24
Will new Auto focuse lens work?
Just a note about new autofocus lenses on the MEF, which was the original question. These will of course work on the MEF in manual focus mode, and I suppose the in-focus indicators will work as well. But they won't autofocus. As regards the DSLRs, I'm sure you are on the right lines to choose bet...
Posted by johnriley on 25/01/2005 - 19:41
1.4x teleconverter
There is a 1.4x autofocus converter that enables manual focus lenses to be used as autofocus lenses on AF camera bodies. Don't see why you couldn't use that on the *istDS for the same purpose. But on the subject of teleconverters, I have never been particularly impressed by the quality. They magn...
Posted by johnriley on 27/01/2005 - 20:02
1.4x teleconverter
Hi, I would back up what Kimbo says. The AF convertor is a very useful tool. I have always prefered prime lenses and generally find that the convertor with a Pentax prime gives better results than the equivalent zoom especially in the range over about 150mm. Also despite what Pentax says, it works ...
Posted by Kim C on 14/02/2005 - 10:44
Pentax Sighting
Just came back from BMW FIZ to get the reference components for the on-going project. There, inside of one 5-er test car, behind the windshield, were 2 video cameras installed on both sides of the mirror. The writing on the front ring of the lenses : Cosmicar/Pentax Video Lens 6mm 1:1.4 ...
Posted by mrz on 04/02/2005 - 07:15
Lots of Lenses - Help!
The Tamron 90mm f2.5 Macro lens has an excellent reputation, and I am just trying one out now. Also the Elicar 90mm f2.5 Macro and the Kiron 28mm f2. However, once you stray from the pentax range things do become less certain, and aperture rings may operate in the reverse direction as can focus r...
Posted by johnriley on 13/02/2005 - 19:14
Lots of Lenses - Help!
At the back of my cupboard is a Sigma 28-200mm. That's where it stays. Quite dreadful. I haven't the gall to put it on Ebay. On another Sigma lens I had, the front part came loose, and the lens wouldn't focus. I discovered that it was attached not by screws, but by some sort of double-sided tap...
Posted by George Lazarette on 14/02/2005 - 10:15
Lots of Lenses - Help!
On another Sigma lens I had, the front part came loose, and the lens wouldn't focus. I discovered that it was attached not by screws, but by some sort of double-sided tape! :shock: Well, most of the Sigmas I've handled felt loose and sloppy and I put it down to demo wear and tear.........perhap...
Posted by Kimbo on 14/02/2005 - 11:23
18-35 lens for £80
Laughing? Not at all. I've just ordered my second D body before this publicity cleans out the last stocks. In penning a eulogy to the D, I convinced myself, if nobody else, that one couldn't afford NOT to buy one at these prices. For those who haven't taken the plunge, all you really need (ass...
Posted by George Lazarette on 03/03/2005 - 11:47
50mm Lenses
The A lens is more useful on modern pentax bodies as it allows automatic aperture setting by the camera. So even the new digital bodies will be totally happy with it. It is a fine 6 element lens of very high quality. The M lens is a 5 element lens, but the more modest aperture may not need 6 elem...
Posted by johnriley on 03/03/2005 - 16:42
zoom recommendations?
Hi, I would suggest staying with Pentax. Generally the quality is much better and if you are using them on an LX, they focus the "right way". If you are looking for a lens mainly for the LX, I would stay with an MF lens rather than an AF one. In this case I wouls look for either the 35-105/3.5 or...
Posted by Kim C on 09/03/2005 - 15:59
macro lenses and reverse adaptor
Just a minor correction to Kim's post: The Pentax 50mm/f2.8 and 100mm/f2.8 are 1:1 (lifesize) macro lenses. That's one reason they're so expensive! The Pentax 100mm/f3.5 (made by Cosina, I think) is 1:2. Just to add another option - it is possible to mount a second lens back to front onto a mai...
Posted by MattMatic on 14/03/2005 - 09:50
Problens, what problens ? Bring me solutions not problens !
Hi Colin, Here are a few disconnected thoughts, mainly based on my own Pentax interest which is the K and M era. Regarding sourcing gear, it's Ebay and the occasional camera fair for me. I would broadly agree with your statement that genuine manufacturer lenses are a better buy than third p...
Posted by digikid-tv on 22/03/2005 - 19:47
Problens, what problens ? Bring me solutions not problens !
Hi Colin, By soft I mean that the lens does not focus well, this is visible in the microprism in the viewfinder at the time of shooting. I shot an event last summer using my MX, mainly on primes. For part of the action I chose to use the Pentax A 28-80 zoom as I was not certain how events would u...
Posted by Anonymous on 23/03/2005 - 16:41
bellows and extension tubes
The further you move the lens elements awy from the film/CCD plane, the closer you focus, so a bellows unit or extension tubes take this further by adding more extension between the lens and the camera body. Tubes are provided as sets of various size, and a bellows unit uses a bellows on a rack t...
Posted by johnriley on 24/03/2005 - 12:27
bellows and extension tubes
As regards set-ups for close up work, it will also depend on what end product you have in mind. As an example, I take pictures of items to put on eBay, some quite small, so a very simple set up is used. Two Jessops print mounting boards 20" x 16" are set up as the background, one flat, one uprigh...
Posted by johnriley on 25/03/2005 - 09:40
