Search results for 'back focus' - page 670
I can't afford anything!
I should point out that good macro lenses tend to have two other qualities: 1 They are exceptionally sharp 2 The have a very flat plane of focus - with most lenses the "plane" is actually concave. This makes them suitable for document copying, for instance. G
Posted by George Lazarette on 19/05/2007 - 18:47
I can't afford anything!
I should point out that good macro lenses tend to have two other qualities: 1 They are exceptionally sharp 2 The have a very flat plane of focus - with most lenses the "plane" is actually concave. This makes them suitable for document copying, for instance. G OK. There appear to ...
Posted by the_drewster on 19/05/2007 - 19:15
I can't afford anything!
OK. There appear to be loads of Pentax Macro lenses on eBay for cheap, but I know nothing. Any zoom lenses you see having 'macro' in the description are not true macro lenses. They merely have a mechanism which allows them to focus at closer than normal distances. Some have the macro setting at the...
Posted by Mannesty on 19/05/2007 - 19:29
I can't afford anything!
A tip. To get the maximum depth of field (the near and far points of the subject that are in focus) you need to use small'ish apertures. To be able to use small apertures you generally need lots of light. You'll undoubtedly need a flash but it'll have to be mounted such that it lights the subject fr...
Posted by Mannesty on 19/05/2007 - 20:01
I can't afford anything!
A tip. To get the maximum depth of field (the near and far points of the subject that are in focus) you need to use small'ish apertures. To be able to use small apertures you generally need lots of light. Unless you have a longer shutter speed? You'll undoubtedly need a flash but it'll have to ...
Posted by the_drewster on 19/05/2007 - 20:24
I can't afford anything!
In a previous post you said you wanted to take macro pics of insects. They tend not to pose too long and if it's a winged insect in flight . . . long shutter speeds may not cut the mustard. Outside, the same rule applies really. It certainly does if you want decent DOF anyway. Wherever you take y...
Posted by Mannesty on 19/05/2007 - 20:40
I can't afford anything!
Cool. Are you finetune99? Or cos50? Neither, try mannesty :roll: So why does everyone have to many lenses with such similar specs? What's the difference in shooting terms, between a 1.4, a 1.7, and a 1.2. I understand the 1.2 is faster than the 1.7, but how much use is that difference in real lif...
Posted by Mannesty on 20/05/2007 - 17:39
I can't afford anything!
If your search is limited to UK auctiions, you won't find it. It's in Spain. I've been doing this for a while and thanks for the info but I know a bit about searching :wink: If I simply type Pentax 50mm (which is what most people would probably start with), mine appears OK on my system and th...
Posted by Mannesty on 21/05/2007 - 10:18
SMC - M series 35mm & 28mm f2 ??
I saw an SMC Tak 35mm F2 in M42 a while back. It was hiding in amongst some nasty cheapo lenses but alas someone else saw it too and I missed out by £1 Expect to pay a premium for these lenses IF you can find them.
Posted by Mongoose on 19/05/2007 - 00:32
SMC - M series 35mm & 28mm f2 ??
Hi, I have been buying & selling old 80's and 90's manual focus gear as a hobby for about 7 years now, including quite a lot of Pentax K items. Up till about 2 years ago, you could find the f2 lenses reasonably easy if you waited about 3-4 months. You could find them on fleabay, on dealer...
Posted by bretbysteve on 21/05/2007 - 12:32
It's REAL!
I'm sure everybody has read and listened lots of praise to the SMC Pentax-FA 1:1.8 31mm AL Limited lens. For those of you who still don't have one and never had the chance to use one: It's all real. Everything. Every little bit of praise. Yes! Ok, so there were lots of threads about this lens ...
Posted by Flink on 20/05/2007 - 20:11
It's REAL!
I'm sure everybody has read and listened lots of praise to the SMC Pentax-FA 1:1.8 31mm AL Limited lens. For those of you who still don't have one and never had the chance to use one: It's all real. Everything. Every little bit of praise. Yes! Ok, so there were lots of threads about this lens ...
Posted by George Lazarette on 20/05/2007 - 23:37
oops
Didn't Chris of SRS fame mention a while back that Sigma were going to be expanding their PKAF range somewhat in the near future? I can't remember exactly which lenses he said would be included, I remember the 50-150 F2.8 was one of them because that one interests me if it becomes apparent that I...
Posted by Mongoose on 23/05/2007 - 19:34
oops
when you say power zoom, do you mean HSM focus motors? (these are not the same thing) The Pentax SDM lenses will be able to be driven from the screw drive, but I'm not sure about hypothetical future Sigma HSM lenses. In any case, last I heared Sigma don't think there are enough SDM/HSM capable Pe...
Posted by Mongoose on 24/05/2007 - 00:42
oops
Ffordes have the FA 100mm version for sale at £199 if that helps It won't help - that's the f/3.5 version (which I believe was a badged Cosina?) You won't want anything less than the Pentax f/2.8 versions (I got my SMC-F 100mm for £199 from LCEGroup a couple of years back) Matt
Posted by MattMatic on 29/05/2007 - 17:14
First shots with the 10-17
The word impressive simply meant I was impressed by the qualities of the images. The distortion is the whole point with a fish-eye lens - if it wasn't there I would want my money back. Correctly used, for impact, the lens gives the tower enormous "weight" and "power" in the co...
Posted by johnriley on 24/05/2007 - 07:48
First shots with the 10-17
Great shot! I like the "eye" effect in the foreground fence (although there is a metal part on the left that kind of breaks the simmetry) and the way you caught those people far away (a mother and her children?) walking the path to the town. The damage on the fence and the fact it's a bit ...
Posted by Flink on 26/05/2007 - 19:27
Pentax A or F 28mm F2.8 versus Pentax DA 18-55mm
I didn't buy it from a proper dealer and won't be able to return it. However, I reckon I could get most of my money back by selling it on eBay if I wanted to. I have tested it at F4 but to be honest my tests aren't good enough yet to be sure whether it's sharper or not. I'm getting inconsistent...
Posted by iceblinker on 01/06/2007 - 19:42
Pentax A or F 28mm F2.8 versus Pentax DA 18-55mm
Actually I've just being doing some textured wallpaper that shows up detail well. The 16-45 is indeed looking better more times than not, but not in every test though. The main trouble I'm having is with the exposure. The camera's meter behaves differently with the 16-45 so I have to give it so...
Posted by iceblinker on 01/06/2007 - 20:30
Pentax A or F 28mm F2.8 versus Pentax DA 18-55mm
I always cradle the lens in my left hand, and support the base of the body with the palm/wrist - even with a diddy 50mm lens on! I get back & shoulder ache doing that for long (elbows in too much make old injuries play up). Anyway, my fears were unfounded after giving the 16-45 it's first pro...
Posted by iceblinker on 05/06/2007 - 00:12
