Search results for 'back focus' - page 1047
Sigma 70-200mm F2.8 EX DG OS HSM Lens - Pentax Fit
They are looking good particularly considering they are at f2.8! I tend to use TAV mode and let the camera decide the ISO from the aperture and shutter speed I choose. I have the K-7 and get a lot of very grainy shots, but I'm a firm believer that you're better off with a sharp grainy shot than a bl...
Posted by SteveEveritt on 28/11/2012 - 19:05
The VPK 72mm f6.8 Meniscus Achromat
The meniscus lens from the Kodak Vest Pocket folding cameras (ca. 1912-26) is known to give a soft focus effect when wide open (due to SA). As originally mounted on the Kodak there was a screw-in mask to limit the aperture to a max of ca. f11; removal of this mask gives a max aperture of ca. 6.8. In...
Posted by Rowdy on 23/05/2012 - 16:15
The VPK 72mm f6.8 Meniscus Achromat
I found this info about a DIY Soft Focus Lens (not specifically for a Pentax DSLR) which is aimed at replicating the behaviour of the Rodenstock Imagon Medium/Large format soft focus lens: I'd be interested to hear of any experience with the lensbaby soft focus system.
Posted by Rowdy on 04/06/2012 - 18:16
Fast short zoom advice
I'm a huge fan of the Tamron 17-50 f2.8. Not too big, quick to focus and so sharp you might cut yourself on its images! Oh, and it's cheap compared to most of the alternatives.
Posted by Mandrake on 26/05/2012 - 09:23
Fast short zoom advice
I'm a huge fan of the Tamron 17-50 f2.8. Not too big, quick to focus and so sharp you might cut yourself on its images! Oh, and it's cheap compared to most of the alternatives. +1.
Posted by Pentaxophile on 26/05/2012 - 16:27
Fast short zoom advice
I'm a huge fan of the Tamron 17-50 f2.8. Not too big, quick to focus and so sharp you might cut yourself on its images! Oh, and it's cheap compared to most of the alternatives. +1. Not sure I agree on that limited test comparison. My Sigma 17-70 is razor as far as zooms go and it's great value.
Posted by Smeggypants on 28/05/2012 - 02:59
Best Tele-Converter for use with Pentax 100mm Macro Lens
Thank you all for your advice. The disappointing spider image was taken whilst using the Pentax Ring Flash, exposure was 1/180th second. Although I was not using a tripod I was resting the lens barrel in my hand against the work surface with the camera tipped so that the ring flash lamp housing w...
Posted by Photon on 25/05/2012 - 11:43
Best Tele-Converter for use with Pentax 100mm Macro Lens
I use the Pentax 1.4X-S converter with catch-in-focus, works a treat
Posted by mille19 on 05/06/2012 - 09:57
Best Tele-Converter for use with Pentax 100mm Macro Lens
I know there was a 1.4X TC on the lens roadmap a few years ago, which then disappeared. I seem to remember seeing it back on the roadmap again when they announced the new lenses, such as the 560mm. Only time will tell. :D
Posted by eenymac on 16/06/2012 - 13:52
Using a manual lens
Hi Maria You also need to use the camera in manual mode - once you have done as mentioned above move you dial around to 'M' - when focusing you will notice the focus confirmation light (bottom centre of the viewfinder) light up when in focus - if it is the same as the K10D onlt the central af se...
Posted by Stuey on 26/05/2012 - 20:00
Using a manual lens
Hi Maria You also need to use the camera in manual mode - once you have done as mentioned above move you dial around to 'M' - when focusing you will notice the focus confirmation light (bottom centre of the viewfinder) light up when in focus - if it is the same as the K10D onlt the central af se...
Posted by autumnlight on 26/05/2012 - 20:43
Pentax DA* 16-50 or Sigma 17-50 (both F2.8)
There is a comparison of these (+ the Tamron equivalent) on the other Pentax forum and the Sigma came out top of the list there. I don't have any experience of these personally but from what I've seen there is nothing between them for iq. The Pentax gains WR and a quick shift focus ring I think ...
Posted by woodworm on 28/05/2012 - 10:56
Pentax DA* 16-50 or Sigma 17-50 (both F2.8)
I went for the Sigma 17-50mm f2.8. I was put off the Pentax 16-50 by it's higher price and reports of failed SDM motors.... Guess what? Before long the focusing on the Sigma was atrocious and it had to go back to Sigma for a new auto focus motor. (UK 3 year guarantee, lens back with me in 12 d...
Posted by grahamcoad on 08/06/2012 - 18:39
Pentax DA* 16-50 or Sigma 17-50 (both F2.8)
I have the DA* 16-50mm. My copy is very good at f5.6, goodish but starting to go at f8, poor at f4 and terrible at f2.8. 16-20mm and 45-50mm aren't great either, imho, particularly the wide end. Very good build quality, mind. Pretty grim CA in the right ie wrong conditions, not that good for flaring...
Posted by mecrox on 08/06/2012 - 19:55
Soligor 400mm f6.3 M42
Sounds as if the previous owner was a twitcher! though most would buy the camouflage fabric sleeve to slip over the lens? There are no locking buttons for you to worry about. Just in case you are not aware, the front (chromed) ring is not connected to the aperture mechanism, the rear (black) one ...
Posted by cbrog on 29/05/2012 - 19:59
Soligor 400mm f6.3 M42
Thanks Roger. Luckily the lens does still focus ok. Bit of perseverance required.
Posted by dangie on 29/05/2012 - 21:04
200mm DA* with Sigma 1.4 and 2x Converters
I thought i mentioned it... but clearly i forgot... Cheers, bforbes. It is some kind of mission impossible with pentax and teleconverters. Let's all hope they will fix that soon. Btw I bought 2x Cobra TC for 6quid last week and I am amazed how good DA*300 performs with it. Of course there is...
Posted by amplified on 28/05/2012 - 23:42
Jacobs Glasgow
Maybe Pentax/Ricoh are stepping up their marketing. They do not seem to have reached the Jessops in Peterborough yet. They had a Q a few weeks back but nothing since then.
Posted by helios on 30/05/2012 - 12:08
Jacobs Glasgow
Maybe Pentax/Ricoh are stepping up their marketing. They do not seem to have reached the Jessops in Peterborough yet. They had a Q a few weeks back but nothing since then. Jessops on Oxford Street had 3 Qs, 3 K-01s, a K-5, many K-xes in various colours including pink and a selection of lenses includ...
Posted by womble on 01/06/2012 - 22:59
Sigma 105mm F2.8 DG EX Macro - Any Opinions?
I had one for a while and probably under used and under appreciated it. It is very sharp (as you'd expect). Funny manual /auto focus push pull affair. It hunts noisily and for ages if you're not careful. I didn't like the screw on hood. I did like the IQ. Tips? Nope but I intend following up...
Posted by dougf8 on 30/05/2012 - 20:44
