Search results for 'back focus' - page 690
Pentax Star 16-50 & 50-135 Lenses
well of of the other pics have been taken between 1/15 and 1/30 handheld so I am assuming that if this was possible with an smc 100mm or 50mm at 2.8 it should also be possible with a Star lens... Getting some good shots with one lens at slow shutter speed, and then some bad shots with another, al...
Posted by ChrisA on 29/11/2007 - 10:03
Pentax Star 16-50 & 50-135 Lenses
Actually it's not the sort of lens I would take into a concert....thought about a 77mm Limited? One reason I bought my 85mm F1.4 and 24mm F2 was for concert photography - I had F2.8 zooms as well, however the 85mm is a clear two shots faster which makes a significant difference. Hopefully the pos...
Posted by niblue on 29/11/2007 - 20:22
Pentax Star 16-50 & 50-135 Lenses
""You seem to be considerably more expert at sarcasm, than you are about understanding testing techniques." Chris I am not testing anything I am taking pictures and I think that's enough. I do concert shots for a project and to get a lens to do the job is the only thing that mat...
Posted by Substitute on 01/12/2007 - 17:02
Pentax Star 16-50 & 50-135 Lenses
well of of the other pics have been taken between 1/15 and 1/30 handheld so I am assuming that if this was possible with an smc 100mm or 50mm at 2.8 it should also be possible with a Star lens... Anyway as I am mostly doing concert shots I chose a lens at 2.8. Now if the lens cannot do the job it...
Posted by benjikan on 02/12/2007 - 15:31
Pentax Star 16-50 & 50-135 Lenses
I got a 50-135mm a week ago. I tested it in low light condition at 2.8 and in daylight at other apertures: back focus, autofocus is not accurate even on SEL mode, totally soft at 2.8. myspace.com/lunacalor the first 5 are taken at 2.8 all focal length with 50-135mm and autofocus. The others are ...
Posted by Daniel Bridge on 02/12/2007 - 18:39
Pentax Star 16-50 & 50-135 Lenses
This is an interesting discussion as I have been thinking of getting a DA* for the f2.8 possibilities. However, if a hammer bends a nail it does not mean the hammer is rubbish, nor the user inept, simply that it is the wrong tool for the job at hand. On a simular note, it states that DA* lens ...
Posted by beakynet on 09/01/2008 - 16:04
Pentax Star 16-50 & 50-135 Lenses
You could try shooting manual focus, its usually too dark for autofocus at gigs, and lights changing means light metering is bad. In my opinion, even with SR, 1/15 is RIDICULOUSLY slow. Bump up your ISO, and noise reduce it later on the computer - 800 or 1600. Id say aim at 1/80 or 1/100 shutters...
Posted by ikillrocknroll on 09/01/2008 - 17:41
Pentax Star 16-50 & 50-135 Lenses
I'm not the greatest at the physics of this, but I thought that a 135mm on a DSLR was roughly equivalent to a 200mm on a film DSLR (you'll know why). Now, my recollection is that we were always taught that it was not really on to exceed 1/x when handholding lenses, i.e. a 50mm lens would be fine at ...
Posted by Paul East on 11/01/2008 - 22:36
Wide angle options ?
When I use the P filter holder on my Sigma, I don't use an adaptor ring, the holder sits quite nicely in the bayonet mount for the lens hood instead. So the holder sits a bit further back than it would on an adaptor ring, which may well help matters. I'll have to try cutting off the front sections...
Posted by Daniel Bridge on 19/11/2007 - 14:33
Wide angle options ?
I do quite a bit of (indoor) architectural photography and I chose the DA12-24 over the Sigma because in all of the photos I seem to see from the 10-20 there is what I would call an unacceptable level of distortion. Not nice, easy-to-correct-in-Photoshop distortion but the horrible wavy kind. If...
Posted by hefty1 on 23/11/2007 - 15:20
Wide angle options ?
Well, i can't afford another lens so I have devised a cunning plan... I can 'convert' my 18-55 to a 10-47 by just sawing off 8mm! where should I saw, front or back?
Posted by justgetoutandride on 24/11/2007 - 19:16
Wide angle options ?
Well, i can't afford another lens so I have devised a cunning plan... I can 'convert' my 18-55 to a 10-47 by just sawing off 8mm! where should I saw, front or back? Don't saw it off the lens, silly - machine the mount down by 8mm. That'll bring the whole lens closer to the sensor, and you'll ...
Posted by ChrisA on 24/11/2007 - 19:25
Wide angle options ?
Well, i can't afford another lens so I have devised a cunning plan... I can 'convert' my 18-55 to a 10-47 by just sawing off 8mm! where should I saw, front or back? Don't saw it off the lens, silly - machine the mount down by 8mm. That'll bring the whole lens closer to the sensor, and you'll ...
Posted by justgetoutandride on 24/11/2007 - 19:46
Anyone used a Takumar 55mm F2?
I will have a look but I may have a spare one. Kim Thanks Kim Much appreciated. Doug (Mr ist) PMed me he is away from home for a few weeks but he suspects the Battery compartment may be dodgy on his one also and will get back to me when he gets home. I believe the sp 1000 is notorious for do...
Posted by Clarky on 21/11/2007 - 22:22
Sigma DG 70-300 apo Good price??
That's about the same price as I paid for a second hand older version of the lens (mine is an APO Super II) so the buy-it-now price seems pretty good. The postage costs look high and I don't know what the import duty is like so it's still worth comparing the price to what you can get a new or second...
Posted by niblue on 22/11/2007 - 17:57
Lens sought : equivalent of my SMC-M 20mm/f4 for ist*D....
The ist D* is a lovely camera, & digital cameras are convenient, quick (and save scanning in all those damned slides) etc... BUT I miss my Pentax SMC-M 20mm f4 ultra wide angle rectilinear lens... So I'm looking for an *affordable* something equivalent for the istD*. Focal length around 14...
Posted by tekno.mage on 23/11/2007 - 14:06
Lens sought : equivalent of my SMC-M 20mm/f4 for ist*D....
Hi, Would you expect to be able to get a car for £1000 that had the performance and handling of a current Ferrari? cheers Steve. MY 20mm f4 was no Ferrari even in 1982, and I neither want or expect a modern equivalent now. I use my istd* as a manual camera with manual SMC K-mount lenses. I've ...
Posted by tekno.mage on 25/11/2007 - 21:07
Lens sought : equivalent of my SMC-M 20mm/f4 for ist*D....
There are no affordable wide primes,......this has always been the problem. There is only the VERY expensive 14mm,...if you can find one as they are like the proverbial 'rocking horse sh*t'. The only practical game in town is the Sigma 10 - 20mm zoom which is considerably cheaper than any prime...
Posted by viewfinder on 26/11/2007 - 14:30
Lens sought : equivalent of my SMC-M 20mm/f4 for ist*D....
The SMC-DA 14mm will cost nearly ten times your miserly budget. Wasn't that what I said?? :P The lens I want is not in current production. It's manual focus, manual aperture (with aperture ring). I don't *want* autofocus, auto-aperture, or auto anything else, just a manual lens with a FOV of 94 ...
Posted by MattMatic on 26/11/2007 - 16:16
macro lens
any advice on a good lens fo use on a bellows is apreciated. SMC Pentax (M,A,F,FA) 50mm 1:1.7 makes an excellent companion to the bellows for macro photography. I believe the 1:1.4 variant has a flatter field of focus, useful for copying. The latter however is much more expensive and a used SMC Pe...
Posted by Mannesty on 28/11/2007 - 18:42
