Search results for 'back focus' - page 666
The return of the prodigal lens?????
Begs the question, though, as to why Pentax are no longer producing lenses that there is clearly still some sort of market for. OK, this thread is about a 200mm macro lens but you can draw parallels to this right up and down the focal length range. Why, for example, is there no fast digital only pri...
Posted by AdrianP on 18/03/2007 - 10:17
The return of the prodigal lens?????
Begs the question, though, as to why Pentax are no longer producing lenses that there is clearly still some sort of market for. OK, this thread is about a 200mm macro lens but you can draw parallels to this right up and down the focal length range. Why, for example, is there no fast digital only pri...
Posted by George Lazarette on 18/03/2007 - 12:20
Various items for sale, mainly lenses.
As I mentioned a month or so ago, there has been a change in my circumstances which means, amongst other things, that I don't get out and about as much as I did. It seems a good time to actually do what I have been meaning to do for a long time, and that is to sell off all the gear that I don't u...
Posted by George Lazarette on 20/03/2007 - 23:55
100-300 , 50-500, TC, tele - please help
hi, i want to buy a tele-zoom for my K100D. i would like as much zoom as possible (animals & birds) and i want to have fast focus ! important note, if AF or SR will not work in some cases, please point it, because i like to have them. another important note, i looked at my picture...
Posted by shayt on 26/03/2007 - 15:11
Considering a 28-200
I'm considering an AF 28-200, and wondering about the respective merits of Tamron and Pentax. The ones I'm considering are: Pentax FA 28-200mm f3.8-5.6 AL (IF) and Tamron AF 28-200 f3.8-5.6 LD Aspherical (IF) (PKA fit). I'd appreciate any comments on either - and also could someone le...
Posted by ChrisA on 28/03/2007 - 13:45
Considering a 28-200
if=internal focus..you are right. I have the pentax 28-200 and it's fabulous. It is a great match to my ds2. if you were a velvia shooter usinge primes you'd notice the limits of the lens as far as sharpness is concerned, but you'd not be able to tell it from a prime using 400 speed film.
Posted by Don on 28/03/2007 - 13:53
Considering a 28-200
I'd appreciate any comments on either - and also could someone let me know if IF means that the front element doesn't move when you focus (and zoom, preferably, obviously). My Dad has one of the Pentax versions - I'll be blunt, I don't like it much but for a 1 lens solution it's OK. Whilst the le...
Posted by spirit_of_will on 28/03/2007 - 14:01
Considering a 28-200
I found it a bit unwieldy, the zoom effect unbalances it a bit. I also don’t like the feel of the lens, very plasticy but then I feel the same way about how all of the Pentax zooms (28-80/28-90) from that era feel like construction wise. I've never done any specific testing but back in those days...
Posted by spirit_of_will on 28/03/2007 - 16:13
Considering a 28-200
As a postscript to this, following the wise words from the contributors to this thread, I've acquired an example of the Pentax SMC FA F3.8-5.6 28-200 (IF). So far I'm very pleased with it, but have noticed one interesting thing. If I zoom it all the way to 200mm, and focus on an object some dist...
Posted by ChrisA on 31/03/2007 - 16:12
Anyone got a forklift truck?
What does APO stand for? :shock: What? No Auto Focus? :cry: Will the 10D antishake handle this? Handheld? George loves Sigma! He's gonna order two :!: :!: As soon as someone comes up with a bright lens - 2.8, we slap a teleconverter on it. Sigma knows this and throws one in! Depth o...
Posted by Mac on 28/03/2007 - 22:01
Anyone got a forklift truck?
[/quote]What does APO stand for? An apochromatic lens is corrected to focus all three colours of light at the same point, red, green and blue. Some highly corrected lenses could extend this into the IR part of the sprectrum. Don't forget that cheaper lenses will achieve this less well than e...
Posted by johnriley on 29/03/2007 - 07:49
affordable fast 85mm?
Hi Thomas, I buy and sell older manual focus gear including Pentax K for a hobby. You have a choice of two more affordable lenses. The later pentax SMC-M 85mm f2 lens and the fairly scarce SMC-K 85mm f1.8 lens. They both appear on ebay, though the pentax DSLR users have been buying them up li...
Posted by bretbysteve on 31/03/2007 - 17:37
affordable fast 85mm?
Yes, but screw-mount lenses are actually easier to use than M's and K's, as you can just leave the camera in Av and it meters with whatever aperture you've set on the lens. Cheers, reuben0 I second this, particularly if the M42 lens in question has the M/A switch, since you can focus on full ap...
Posted by Mongoose on 01/04/2007 - 23:39
affordable fast 85mm?
I was going to suggest the Tamron 90mm F2.5 too as it's cheaper than a Pentax 85mm and is a stonkingly good macro lens, as well as being ideal for portraiture. If you wanted to go for a really cheap option ie. nothing to lose, you could look for a Tamron Adaptall 2 135mm F2.5 (model 03B). It's a...
Posted by Kimbo on 02/04/2007 - 01:42
affordable fast 85mm?
Hiya, Apologies to all for going way off the original thread..but you know how these things happen.. "Compare a Sigma 70-200 f2.8 to a Canon L 70-200 f2.8 or f4, is the Canon optically 2 times better than the Sigma?" ...if you could sum up lens performance in this simplistic numer...
Posted by bretbysteve on 03/04/2007 - 10:09
Pentax 50mm SMC-M F4 ?
I've never used one but I can't imagine a Pentax SMC prime being bad. see some other users comments I always refer to that site when I'm considering a Pentax lens, older ones especially. For some reason that link takes you to the older version of the lens, scroll down just a bit to find the ...
Posted by Mongoose on 02/04/2007 - 23:06
Another Tele-converter question...
Perhaps the best all-round teleconverter for the K-mount is the Pentax F 1.7X AF. It provides auto-focus for any lens mounted on it - even manual focus lenses - and the quality, like all Pentax tele-converters, is very high. The auto-focus mechanism has a limited range, so the main lens has to b...
Posted by George Lazarette on 02/04/2007 - 21:27
Advice Best Sharpness settings in Photoshop
Hi All Although not a new issue at all but one for which I will no doubt get hung drawn and quartered for yet again but can anyhelp with the following. Yesterday I had a play with a Canon Eos 5d with the 24-105 mm lens with IS (image stabalizer) Yes the images where good and clear/sharp wel...
Posted by petekd on 07/04/2007 - 13:10
Wide angle lens for an ME Super??
Well, there are plenty of pentax 28mm lenses out there - A pentax SMC M 28mm 2.8 in good condition. shouldn't set you back more than about £40. Third party lenses can be had for much less and some of them are quite good. The joy of Pentax is if you buy the old manual lenses they will work on the new...
Posted by amilner on 15/04/2007 - 16:33
K10D prime lens choices.
Thank you for your reply, Yes, I do know about the Sigma 30mm f1.4. However, on DSLR's this would equate to 45mm, or 'standard lens' view which is probably my least used lens type with other formats although I DO use the 80mm with 6x6 sometimes. I find it interesting that there is such a lack...
Posted by viewfinder on 16/04/2007 - 17:48
