Search results for 'back focus' - page 1174
Wondering what the field of view of the DA lenses is on the K-1?
Some real world images from the K-1 with DA lenses. All show the full frame out of camera jpeg downsized to 1000 pixels in Photoshop Elements for the forum. I'll start with some truly budget lenses that many will already own. DA 35mm f2.4 @ f7.1 (The plastic fantastic) As far as I can see i...
Posted by JAK on 02/05/2016 - 23:17
Wondering what the field of view of the DA lenses is on the K-1?
I thought there was a little corner/edge vignettjng on the 35mm plastic fantastic image, but nothing that a little 'marginal luminance' correction won't fix ... (that's what Pentax call it in their PDCU software anyway :) ) I agree with that, I'll try it again as I also have a rubber lens hood on it...
Posted by JAK on 03/05/2016 - 10:05
Wondering what the field of view of the DA lenses is on the K-1?
First off, another look at the DA 35mm f2.8. A shot as taken - DA35mm f2.8 @ f8 Same shot with a +30 vignette correction in Photoshop Elements (it's in Filters>Correct Camera Distortion] That lens certainly performs above expectations. By comparison, similar shots taken with the FA ...
Posted by JAK on 03/05/2016 - 13:59
FF compatible lenses for K-1
Probably simply that people kept buying them. Do you remember the 50mm f/1.4 fever that struck here a couple of years back? It's an ideal portrait focal length of course, on APS-C. The Limited lenses were also legendary for quality and they still have it today. If they sell, then why not keep them g...
Posted by johnriley on 04/05/2016 - 22:46
Wow - Pentax Daguerreotype Achromat on Kickstarter. Hurry!!
Has anyone else seen the Lomography Daguerreotype Achromat 2.9/64 Art Lens that's currently being crowd funded on kickstarter? From the video and details it looks really intriguing! It's a copy of the lens that took the first ever photo of a human, back in 1839, and it creates some beautiful eff...
Posted by Spaceman_Spiff on 03/05/2016 - 14:50
Pentax HD 1.4x convertar and Tamron 70-200/2.8
Since there's pretty much no information about this combo (I looked before buying the converter) I'll share my experience so other people could benefit from it. I had Kenko 1.4x Pz-AF converter before and the biggest issue was autofocus. It would focus if it was in the ballpark already, but if it...
Posted by gfurm on 04/05/2016 - 20:56
Pentax A 35-70 f4 smc
Received lens today ,have just given it a quick try out in the back garden and have to say i'm impressed so far . My only concern is the loseness of the focusing ring and the slight play in it ,would this be fixable or not . Thanks for looking Sean
Posted by melness on 10/05/2016 - 18:11
Pentax A 35-70 f4 smc
It looks sharp enough. The colours need a bit of a tweak, which isn't the lens, it has very natural colours. If your not happy with the focussing ring, can't you send it back? Any repairs if possible would probably cost more than another lens. --
Posted by Algernon on 10/05/2016 - 18:46
Pentax A 35-70 f4 smc
I just looked at mine. Turning it is absolutely effortless. It doesn't quite spin but it is far "looser" than any of my other 'A' series. I then grabbed its little brother that has a one touch zoom and focus. That too is a bit on the loose side but neither of them is sloppy or has what I'd call exce...
Posted by davidwozhere on 10/05/2016 - 22:45
Pentax A 35-70 f4 smc
Just checked mine the focus ring is smooth and has just enough resistance to stop it getting accidentally knocked. Just how I like it. The zoom ring is stiffish but not too stiff. Only just noticed that the MACRO goes down to 0.37X at 250mm (70mm end). So it is in effect a TRUE 70MM MACRO L...
Posted by Algernon on 11/05/2016 - 15:02
Pentax A 35-70 f4 smc
I'm not happy on how loose the focus ring is so lens is going to be returned. Shame because it produces lovely sharp images without too much effort . The chances of coming across another one for the money I paid is slim I think .
Posted by melness on 11/05/2016 - 17:43
Pentax A 35-70 f4 smc
It may be normal though, so if it takes good pictures why return it? If the price was low, it could be worth keeping. When I look through the view finder to focus ,the wobble is quite pronounced and it just feels like end is going to fall off .
Posted by melness on 12/05/2016 - 06:20
Price enquiry please - Pentax-M SMC 35mm f2.8
Bought a few items recently with the intention of keep hold of them but new lens fund means a few things have to go and I'm looking to sell one of the lenses but unsure what to advertise it at price wise. When I checked eBay they're going for up to £112 but didn't know if that was a realistic price ...
Posted by cardiffgareth on 13/05/2016 - 18:01
In praise of the DA*300 and 1.4TC
There's been a small amount of debate on here recently about the Pentax 150-450 lens and how good it is, with some comparisons to the DA*300. I've been a long time supporter of the DA*300, either on its own, or paired with the Pentax 1.4TC and today I brought it out for the first time this year to ...
Posted by davidstorm on 15/05/2016 - 19:44
In praise of the DA*300 and 1.4TC
I'd say the biggest difference is AF speed, for Sport/Wildlife I've found the 150-450mm faster than the 300mm + x1.4, I think the focus limiter has a lot to do with it. DA*300mm is still one of my favourite lenses though :D
Posted by mille19 on 15/05/2016 - 20:27
In praise of the DA*300 and 1.4TC
.... Hi Nigel, appreciate your viewpoint on this, but how do you mask off individual whiskers and hairs? I don't think this technique would work very well on wildlife images? Regards David Firstly, sorry David I should have explained, I would not be advocating a software blurring solution as the...
Posted by McGregNi on 16/05/2016 - 13:41
In praise of the DA*300 and 1.4TC
Thanks for the clarification Nigel, I can see where you are coming from. With the DA*300 we are fortunate to have a lens that produces the smooth out of focus effects without the need to replicate them in post processing, which is important to me. I can see too the possibilities with all manner of...
Posted by davidstorm on 16/05/2016 - 22:04
FA 28-105mm F3.2-4.5
I find this lens pretty sharp if stopped down a bit and provided no filters are used. I have a Jacobs UV filter which I used for protection and a polariser. I have found that both seem to degrade the image - the polariser seemed to affect the focus - I tried to photograph a small flower this mornin...
Posted by miles500 on 16/05/2016 - 23:44
FA 28-105mm F3.2-4.5
As I said before, pictures such as the goose and 'Flying Scotsman' in particular fail to give me confidence that the K1 and/or new lens tracking autofocus performance is up to scratch (though I do note that Scotsman was visiting the Fife Circle well into the evening when light levels were declining)...
Posted by smudge on 17/05/2016 - 15:07
FA 28-105mm F3.2-4.5
The goose was taken at 105mm at f5.6, so depth of field is very limited with FF. The eyes are spot on which is what one normally aims for. I do not see a focus problem here that a bit more DOF wouldn't have helped. The Flying Scotsman photo was taken at an ISO of 12800, which isn't ideal! It isn't ...
Posted by JAK on 17/05/2016 - 15:19
