Search results for 'back focus' - page 995
Lens - decisions decisions (wrong ones)
If you're looking for cheaper non-Pentax MF primes on Ebay the Tokina 28mm is not bad, I picked one up for £35 a few months back and the quality is decent for the price ^^
Posted by madmazda86 on 30/08/2011 - 17:39
Polarising filter Tamron 10-24mm
There is a bit of luck and some judgement I think as you stand there composing the image, making sure everything is OK then extra twiddling the CPL under the lens hood looking for the reflection on the water to disappear and getting the perfect angle. The first was just to get rid of the reflec...
Posted by dougf8 on 24/08/2011 - 23:03
Pentax 18-250 f3.5-6.3 ED AL
I have to agree. In my experience the 18-250 is rather flat but when I needed to carry just one lens, such as at a wedding, then it will get you the shots you need. And if you shoot in raw then you get 90% back in processing. But I don't travel light! I take whatever I can carry. I can trade ...
Posted by greynolds999 on 24/08/2011 - 18:49
Water, dust, general grubbiness. What can you get away with these days with lenses?
OK folks, I've had a quick search and couldn't see anything definitive, so thought I'd pop a topic up. Back in the day of using 35mm manual focus Minolta and Russian 6*6 (Lubitel for the win!) I was never too concerned about the odd splash of rain on my lenses, and if it was very wet, I'd just use a...
Posted by Portland on 25/08/2011 - 11:33
new lens??
For flowers the 18-55 at 55mm is already pretty good, try it :wink: Put the lens on manual focus and put it to his closest focus and then move the camera about till you get focus.
Posted by Anvh on 26/08/2011 - 18:01
Front focusing on K20D
Hi I have identified that my k20d front focuses quite significantly. Since I got it, I could not understand why sharpness is poorer than on my k100d. Finally, yesterday I read about front/back focusing issue, I tested it at home, corrected and now looks fine. However, my concern is that I did the t...
Posted by Pietrach on 26/08/2011 - 10:22
Tokina Lenses for Canon & Nikon
I "think" it's something to do with a tie up between Tokina and Hoya/Pentax. The 35mm macro, fisheye, 50-135mm 16-50mm and df-a 100mm macro are also produced under the Tokina brand (but sell for a lot less). They don't have WR, SDM (some would say a good thing) or quick focus ability.
Posted by Mike-P on 26/08/2011 - 12:07
35mm only or digital
If they 'autofocus' on your MZ50 then they'll work just the same on your K100d, if not then manual focus should work. Give them a try and let us know how you get on.
Posted by Hardgravity on 27/08/2011 - 07:35
28mm Sigma or Pentax?
Vivitar Close Focus Pentax K
Posted by rparmar on 29/08/2011 - 14:00
28mm Sigma or Pentax?
Another vote for the 28mm Vivitar close focus. A great lens, rparmar has written extensively about them. PK versions currently about £25 on ebay, PKA versions about £50. The ones with a serial number starting with 22 or 28 are thought to be the better ones.
Posted by thoughton on 29/08/2011 - 15:08
Sigma 105mm EX Macro
Have been offered one of these lenses (with the aperture ring) at what may be a resonable price. It looks in mint condition but there is no lens hood with it. Because the front element is set so far inside does it really need a hood? I can't see any way to fit one anyway except in the filter thread?...
Posted by tyronet2000 on 27/08/2011 - 17:15
Sigma 70-200 f2.8 or Tamron 70-200 f2.8 or Pentax 60-250 f4
Hi everyone, here is the dilemma: I shoot a huge amount at the local kart track and use my DA 55-300 but have found that it is very slow. Often by the time it decides the kart is in focus and the shot fired the front kart has moved on and the kart in second place is in focus. Picture in the bin :ev...
Posted by SteveEveritt on 27/08/2011 - 21:28
Sigma 70-200 f2.8 or Tamron 70-200 f2.8 or Pentax 60-250 f4
Have you tried changing your focus & shoot technique a little? My preferred approach is as follows: change the custom menu so that half-press-on-shutter does NOT focus. Now, press the "AF" button with your thumb to trigger auto focus - you can pre-focus on the required point - and when you press ...
Posted by MattMatic on 27/08/2011 - 22:17
Sigma 70-200 f2.8 or Tamron 70-200 f2.8 or Pentax 60-250 f4
The technique often used for racing cars is simply to focus manually on a place on the track, wait for the cars to arrive just before the closen spot and release the shutter. We fire the camera just before the moment to allow for the very slight shutter lag on a DSLR. It might be as musch as 150ms s...
Posted by johnriley on 28/08/2011 - 10:42
Sigma 70-200 f2.8 or Tamron 70-200 f2.8 or Pentax 60-250 f4
I'd go with the Sigma 70 - 200 F2.8, been using one lots recently, both with a K5 & K7, focuses quickly and excellent IQ. The F2.8 will allow a bit more light in to aid the focus over the F4 and give you less DOF if you wish to blur the b/g easier, also give you increased shutter speed in poor li...
Posted by Chrism8 on 28/08/2011 - 10:43
Sigma 70-200 f2.8 or Tamron 70-200 f2.8 or Pentax 60-250 f4
Thanks Chris, that's the kind of answer I am looking for. John, I have used this method in the past however the "action" does not always happen at a predetermined spot and I need the flexibility of a fast lens to increase the opportunity of capturing it. So which lens would you recommend? Bearing y...
Posted by Frogfish on 29/08/2011 - 10:57
35mm 2.4 vs 2.8 macro or 40mm 2.8 Ltd
I'd go with either of the 35s. Build quality is nice but I prefer the bokeh of the faster, cheaper one. The close focus of the limited lens appeals too though! A tough choice so I just went for the cheapest. Oh and the fact it is 'full frame' is also great if you plan on shooting film or suspect Pen...
Posted by Pentaxophile on 29/08/2011 - 21:34
35mm 2.4 vs 2.8 macro or 40mm 2.8 Ltd
To be honest the build quality of the 2.4 is astonishingly good considering the price and weight. Yes it's plastic but the focus is smooth and has some damping when used manually. It feels much better than a lot of current consumer goods and I can see it lasting for a good length of time. I'd lo...
Posted by Dangermouse on 29/08/2011 - 21:55
35mm 2.4 vs 2.8 macro or 40mm 2.8 Ltd
It's worth bearing in mind that all of the options you have identified are pretty good so comparison between them will be subtle and quite subjective. In practice, I'd be happy with any of them. However, given what you want to do with it, I'd suggest getting two lenses: The 35/2.8 limited is ...
Posted by sorted78 on 04/09/2011 - 08:38
Help with adaptall mount - won't fit K-r
Hello Ken, your problem could be that the diaphragm operating lever is jammed in the wrong position and comes up against the lever that moves it in the camera body. If the mount has been correctly installed on the lens and you set the aperture ring to the smallest aperture you should see the diaphra...
Posted by Richard-JS on 03/09/2011 - 00:23
