Search results for 'back focus' - page 644
SMC-A 300 f4
Hi All The lens has arrived, done a few quick clicks around the house (struggled to get min focus distance of 4m) and the results look really sharp and contrasty, will have to wait till the weekend to do some outdoor shots (drive to work in the dark and drive home in the dark :cry: ). The l...
Posted by McBrian on 18/01/2006 - 19:01
SMC-A 300 f4
I would try Robin at Harrow Technical. Kim Hi All The lens has arrived, done a few quick clicks around the house (struggled to get min focus distance of 4m) and the results look really sharp and contrasty, will have to wait till the weekend to do some outdoor shots (drive to work in the dar...
Posted by Kim C on 19/01/2006 - 14:01
Pentax 85mm f1.4
Hi Matt, I am afraid it very probably is a re-mortgage job. I buy & sell rare Pentax K (also Contax & Zeiss) and have only had two A* 85/1.4 in the last 24 months, both sold on evilbay for £600-£700. One went to the USA, as many scarce mf gear does, but a UK buyer paid £675 for one. He wa...
Posted by bretbysteve on 13/01/2006 - 12:10
Pentax 85mm f1.4
I used to be poor. For many years I had only gr 8. When I learned photography, I started with a used pentax k100. I have learning disabilites and am self taught. It was hard. When I started being asked to do weddings and promotional stuff for some small businesses, in my small hometown, I foun...
Posted by Don on 17/01/2006 - 10:59
SIGMA Lens experiences
Would I trade my Pentax 16-45 for something else? No. ;) Resolution is astonishing, flare control unbeatable. An extremely useful and usable lens. Especially good for landscapes with some ND grad filters. I think all of my half decent landscapes were shot with this lens. (Just remember the "Rile...
Posted by MattMatic on 13/01/2006 - 21:31
Lens regrets
The 16-24 combined with an old K 45-125 is a great kit for walking around, especially when I keep a 31mm f/1.8 as a normal. Just like the old days!! I used to travel light with just the FA* 24mm and 85mm lenses and a single MZ-5 body, or heavy with a Z1p and 28-70 and 80-200 F2.8 zooms, really heav...
Posted by niblue on 15/01/2006 - 20:38
pentax macro 100 2.8 onto ist digital any good?
I know there is some disagreement over this generally, and I also know that the definition of the circle of confusion can be changed, and so the difinition of DOF will change. Bur look at it this way. If we have a standard lens on a large format, medium format and 35mm camera all showing the same...
Posted by johnriley on 17/01/2006 - 12:51
50 MM Macro on a Reversing Ring
Hello Everyone, A while back, I asked if it was worth reversing a Macro lens when using extension tubes and/or bellows. The answer was a resounding yes. So, I put on the reversing ring and thought I'd start out modestly by just mounting the lens on the camera at first to see if I could notice a...
Posted by Anonymous on 17/01/2006 - 00:38
50 MM Macro on a Reversing Ring
Hi Mac, The magnification depends on the subject lens distance and not the position of the focus. Kim
Posted by Kim C on 19/01/2006 - 13:56
50 MM Macro on a Reversing Ring
Hi Mac, There wasn't a 200 for M42. To be honest, you would be better off with the normal SMC 200/4 Tak which are reasonabley priced. Pentax stopped producing many of the long primes in AF as there was a general move to zooms. However, many found out that primes still give better results. As there ...
Posted by Kim C on 20/01/2006 - 11:36
50 MM Macro on a Reversing Ring
Mac as usual i love reading your posts. I've done a little kayaking and have some shots from a local event for our local rowing club. I posted elswhere about using a 5 gal pail for a waterproof case that should be usable for you. Also you know that a step up ring and uv filter cand be used with a z...
Posted by Don on 20/01/2006 - 15:00
50 MM Macro on a Reversing Ring
Don, You broke my heart with the missed eagle shot. I had a similar, though not nearly so spectacular miss on my last paddle a week ago here on the Saint Laurence river. It was very damp, chilly and threatening rain, so I left all picture-taking gear at home. (I've very unwisely rid myself of...
Posted by Anonymous on 20/01/2006 - 15:37
What settings for *ist DS when using M42 lenses?
You can leave it on Av, but with the lens stopped down. Open it up to focus/compose, but stop down before shooting. Alternatively, stop down, and meter the same way as with K/M lenses in manual. Whatever you do, stop down before pressing the shutter. G
Posted by George Lazarette on 19/01/2006 - 13:14
Pentax FA, F lens
Ajay, You can use all genuine Pentax lenses on the digital bodies without any problems ;) The "F" and "FA" just work. The "A" series are manual focus In all cases, you should leave the lens aperture ring set to "A" for best compatibility with the DSLR. (You can use the "M" and "K" series man...
Posted by MattMatic on 19/01/2006 - 10:26
the 12-24 gets a workout
Well, I've finally posted a cople of tests I did with the 12-24 lens. OK, one was for a client. But the shot directly into the sun was just a test. 1/4000 second at f/5. Note the absence of the usual string of sun circles, and that there is minimal flare even right close to the sun. Very...
Posted by Arthur Dent on 24/01/2006 - 03:20
the 12-24 gets a workout
We're looking at what would be an 18mm view on a full-frame camera. The camera was placed pretty far back, so the wide-angle effect continues on via the mirror. I thought it was extreme, but that's what I saw in the viewfinder. The bed fills the foreground, but the mirror shows the carpet between...
Posted by Arthur Dent on 24/01/2006 - 14:18
Decent 1.4x and 2x AF teleconvertors?
Any suggestions about decent teleconvertors in Pentax AF fit (including UK online suppliers if possible)? Primarily for use with a Tokina ATX-Pro 80-200 F2.8. I've got a cheap 2x one I picked up years back but it's not very good.
Posted by niblue on 30/01/2006 - 10:32
Decent 1.4x and 2x AF teleconvertors?
I have the Pentax AF 1.7x adapter and have got some great results using it. It's also an interesting thing because it focusses internally, allowing you to use a manual focus lens in AF mode! And it's also useful for large lenses, since the lens itself doesn't focus, but only the AF adapter. Makes...
Posted by MattMatic on 30/01/2006 - 11:13
Decent 1.4x and 2x AF teleconvertors?
The only slight inconvenience that I've found with the 1.7x AF adapter is that you generally set the main lens to infinity and allow the adapter to do the rest. Sometimes the subject falls outside the range of the adapter and it simpy can't achieve correct focus, the solution is to approximately foc...
Posted by Kimbo on 25/03/2006 - 09:31
Decent 1.4x and 2x AF teleconvertors?
Brian, Those results look pretty good and certainly I'd expect a 70-200 F2.8 with a good 1.4x or 2x to outperform a consumer zoom which goes to 300 or 400mm. I've seen the 1.4x Sigma on sale in the States but it only seems to list as being compatible with certain lenses, probably because there is...
Posted by niblue on 26/03/2006 - 20:17
