Search results for 'back focus' - page 629
F 24-50mm f4.0 (auto focus)
Hi, I bought onr of these lens about 4 months ago and it has become my "standard" lens for autofocus. I can't qoute any figures but it does seem to give results on a par with the older M and A versions. I have had one of the M versions for many years and it has always given superb results. They don...
Posted by Kim C on 31/01/2004 - 13:53
Lens fitting for Pentax MZ-50
Hi I have a Pentax MZ-50 camera for which I'd like to buy a fast lens, preferably a zoom. However whenever I try to find one I come up against several different 'fit' descriptions - FA, AF, KAF, Z etc. Does anyone here know the definitive fitting for this camera? I almost bought a second-h...
Posted by Lynne on 01/02/2004 - 09:59
Lens fitting for Pentax MZ-50
I should have added that the "A" lenses are manual focus only, but otherwise work fine with your camera. Manual focus is not a major disadvantage, especially on a fast lens (which lets in a lot of light when you are focussing). As a generalisation, fast zoom lenses are either very expensive or...
Posted by George Lazarette on 01/02/2004 - 12:42
The Dreaded Fungus
I recently inherited a set of screw fit lenses. They were bought new in the late 60's and I don't think they have been used more than a couple of times. The 150 is as new so no problem. However, the other 2, a 50/1.4 and a Soligor 35-105/3.5 both have an attack of fungus. I am not too worried about ...
Posted by Kim C on 02/02/2004 - 10:26
The Dreaded Fungus
Hi Kim & the rest of the Pentax gang! First, thanks for the link Kim. It helped me to see the tools that is necessary for the lens repairs. I have made my own varianta of it. It looks like something unfinished but it is work well. I was manage to unscrew the ring which fix the front element t...
Posted by Saso E. on 22/06/2004 - 14:20
Do you have an FA 24-90 AL(IF)? I need help!
I purchased an FA 24-90 AL(IF) a couple of weeks ago and think there is a problem with the build quality. There is alot of lateral movement on the zoom barrel (2-3mm) when fully extended, less when retracted but still noticeable. I took the lens back to the retailer but the replacement offered wa...
Posted by peteshelley on 02/02/2004 - 19:49
BOKEH
Kim, Bokeh is not a 5TLA ;) It is the effect produced when out-of-focus bright light hits the lense. The term comes from Japanese ( http://www.minox.org/minoxencyclopedia/b/bokeh.html ) Here's a definition: http://www.kenrockwell.com/tech/bokeh.htm And different lenses really do have diffe...
Posted by MattMatic on 06/02/2004 - 12:47
is my pantex me super compatible with a vivitar lense
I had a Vivitar zoom for my MX. One point to note is that Vivitar lenses focus in the opposite direction. If you look at your Pentax lens, infinity is at the left of the scale, on the Vivitar on the right. If you go for the Vivitar, make sure you give it a good try out first - because the who...
Posted by david13 on 16/02/2004 - 14:52
is my pantex me super compatible with a vivitar lense
I think the reason this is rarely refered to now is due to the majority of cameras being autofocus and therefore the problem is less relevant. Certainly all the reports in the photo press of 15 years ago or so used to mention it and it was one of the sales ploys of Sigma who made their lens focus th...
Posted by Kim C on 16/02/2004 - 15:26
FA J lens opinions
Previously, I had used a Pentax FA 28-80 F3.5/4.7. It may have been me, but I always felt this lense came up short on meeting my expectations. If you're shopping for lenses, I would recommend you include the Tamron SP AF 28-75 F2.8 XR Di as part of your research. I have recently purchased t...
Posted by Anonymous on 18/02/2004 - 16:11
FA J lens opinions
The concept of the "budget lens" does seem to be a relatively new one - in the days on M and A series lenses there were no real distinctions between the performance levels of the lenses in a range - I suppose the first "budget" Pentaxes were the bayonet Takumar series. I can vouch for the 24-90mm...
Posted by johnriley on 19/02/2004 - 18:17
50mm lens
Hi, There is a lot to be said for the good old 50mm lens. Because you may have to move rather than just rotate the zoom ring, it might make you think more about the composition and be more creative. The 50mm lenses are superb. The quality is first rate and the brighter viewfinder is a joy to use. T...
Posted by Kim C on 19/02/2004 - 13:50
How good is a Vivitar Zoom ??
Hi Fence, The Series 1 Vivitars were some of the best independant lenses made. I don;t think the 80 -200 is one of them though. Even so it is not likely to be "crap". One problem of the independant apart from Sigma is that they focus the other way round from Pentax's and therefore if you are used t...
Posted by Kim C on 26/02/2004 - 14:52
Pentax faj compatability
I have to say, I tend to agree with Joshua. I got rid of my Z1P and replaced it with an MZS despite the poorer "spec" on paper. I found the Z too cumbersome and too fiddly to use. The MZS is a joy to use and I can't say I have ever missed taking a photo which needed 1/8000 sec! The MZS may not have ...
Posted by Kim C on 05/05/2004 - 14:51
'Loose' focussing ring
I have a 50mm 1.7 lens with a loose focussing ring. It focusses fine but at each extremes of focus the ring continues to turn. Any idea if I can fix this? Thanks
Posted by fleetey on 14/03/2004 - 17:04
'Loose' focussing ring
I doubt you can fix it yourself, I had a similar problem with a 35-135 F lens. The inner drum (part of the lens that projects out of the barrel as you focus) could be removed completely and was at risk of falling out. I had no option but to send it for repair. Assuming your lens is reasonably secu...
Posted by Kimbo on 14/03/2004 - 18:16
What is your favorite lens?
I recently bought an old used screw mount 55mm f1.8 lens for my istD. First let me say that is lens is extreemly sharp and fast, it is a complete pleasure to use. I just love this lens. My newer 50mm, and my autofocus zoom havent seen the light of day in about one month. All this being said I ...
Posted by rw86348 on 18/03/2004 - 16:38
What is your favorite lens?
I should admit that can't seem to get into this new fangled auto-focus thing. ........good grief, mind you I love switching my Z1-P to manual and using my A series 50mm 1.7 and Tamron adaptall2 MF lenses!
Posted by Kimbo on 18/03/2004 - 22:57
What is your favorite lens?
I have avoided posting to this thread until now - mainly because I could not honestly say that any one lens leapt to mind - I can find good reasons to list a number of optics here. While I have always really appreciated the prime lenses in my collection, particularly the 50mm F1.4 'm', 100mm F2.8 'm...
Posted by Stephen on 01/04/2004 - 13:06
Tokina SD 28-70mm f3.5
This lens has been tested by german "fotomagazin " and got a "super" as a result ! It's build quality is quite good ! It's a 2 ring zoom lens and you'll have to look if the mechanics of both zoom- and focus-ring are o.k. Personmally I didn't like how it feels and stayed with a Pentax A 28-80 the...
Posted by Anonymous on 06/07/2004 - 13:03
