Search results for 'back focus' - page 994
Macro
The more I look at this, the more I agree with the "there isn't a bad dedicated macro lens" statement. . It is more fun (i.e. technically challenging) than the AF/AE lenses but the results are just as impressive. You just have to focus manually and use the stop down metering. (use the came...
Posted by dougf8 on 19/08/2011 - 19:07
Macro
Depends how macro you want to go, most large insects like dragonflies, butterflies etc you could get with a standard zoom, most of which will focus as close as 12" a dedicated macro (say 100mm) would help you get the same if not even more frame filling shots but also allow you to keep your distance....
Posted by fatspider on 19/08/2011 - 19:11
Macro
Manual focus isn't really a problem. I normally set the lens on the magnification I want (1:1 or 1:2 etc) then move the camera to get the focus. My Sigma 50 macro is used on manual focus 90% of the time. Not sure why you are worried about the reversing ring though. I have a Pentax made one whi...
Posted by womble on 19/08/2011 - 21:14
Pentax 100mm or Sigma 105mm Macro.
100mm will certainly be better with regards to reach but the minimum focus distance is around 30cm/12" which still means getting quite near to the subject if you want 1:1 magnification. Which Pentax lens are you refering to? the DFA100mm or the DFA100mmWR, the former could probably be found for l...
Posted by fatspider on 21/08/2011 - 10:03
Pentax 100mm or Sigma 105mm Macro.
The Pentax lens is superb and can be found fo amazingly low prices. I would unhesitatingly recommend it. The Sigma lens I have not tried, but being aware that Sigmas can vary quite a bit and that they reverse-engineer, I tend to avoid them. I don't like the feel of thr finish either! 100mm will c...
Posted by ChrisR on 21/08/2011 - 15:59
Pentax DA 300mm for butterfly/dragonfly photography
Let's see... 1 is a 4MP crop 2 is 10MP full frame 3 is a 7MP crop All three are probably between 2m and 1.4m (min focus distance).
Posted by Tyr on 21/08/2011 - 19:26
Pentax DA 300mm for butterfly/dragonfly photography
This is from today, with the siggy 100-300, not cropped. 300mm, f8, 1/640, ISO2000 (!), it's been sharpened a tad. This lens has a minimum focus distance of 1.8m; that, considering it's well over a foot long with a hood on, means you're just out of range of the butterfly's irritant zone :) ...
Posted by bretti_kivi on 21/08/2011 - 20:28
[entax scope and adaptor = 1100mm F12
On top of my current lens dilema I've recently been to the Birdfair at Rutland Water and had a play around on the Pentax stand. They've got a spotting scope and adapter arrangement that fits on the K5 and, depending on the model of scope, provides a manual focus lens at a constant F12 of (quoted)...
Posted by MartynUK on 21/08/2011 - 10:25
[entax scope and adaptor = 1100mm F12
Well I resisted the temptation... having taken to the woods with my 120-400mm to see how useful F12 would be the answer was - hardly at all, even with ISO 12800 - allowing for a reasonable shutter speed. I also seriously thought about how often I would be in a position to take a shot the setup w...
Posted by MartynUK on 25/08/2011 - 23:53
[entax scope and adaptor = 1100mm F12
Pretty much my thoughts really. I'm in a learning process but am finding that small fast moving birds are sometimes easier to get with my 55-300 than the Sigma 150-500. Although it may focus faster it is less manoeuveable so even that may get relegated to mainly hide work.
Posted by dcweather on 26/08/2011 - 16:42
Tamron for Pentax
The only caveat might be that for about half the price or less of the latest Tamron 90mm macro you could get the Adaptall SP version + Pka adaptor which would be optically pretty much the same. No autofocus but you might be manually focusing for macro anyway. Just a thought. I have considered the T...
Posted by tyronet2000 on 26/08/2011 - 07:27
The Best Value Pentax Lens?
Interesting. I've got an SMC Takumar 35/3.5 which, I believe, is optically identical. I didn't get on well with it (difficult to focus accurately), but it looks like it might be worth persevering with.
Posted by sorted78 on 22/08/2011 - 21:01
The Best Value Pentax Lens?
Trying to bring the subject back on topic, despite my earlier efforts, another huge value lens is the 135mm f3.5. It's good stopped down, bit 'blah' wide open but ridiculously small and cheap. For £35 you can't go wrong (not sure why they always seem to cost £35, I think it's just for completeness -...
Posted by Pentaxophile on 23/08/2011 - 20:01
The Best Value Pentax Lens?
For many years from about 1980 the SH price was always £39 :shock: Same with the 28mm f/2.8. The 50mm used to be dearer until a lot of Oly 50mm f/1.8's flooded the SH market at £25 each which brought down the price of all 50mm's. I think the Oly flood was due to a pile of OM10's etc being bey...
Posted by Algernon on 23/08/2011 - 20:55
The Best Value Pentax Lens?
Get a K or M 120/2.8. Minimum focus is 1.2m and you can use it hand held at 1/125 without shake ruining your photos. They are, unfortunately, rather hard to find... :twisted: I would recommend the M 135mm f3.5 to anyone wanting something faster than the kit lenses on a tight budget. It's tiny...
Posted by Dangermouse on 23/08/2011 - 22:25
The Best Value Pentax Lens?
On the subject of earlier Pentax lenses I occasionally use my M series 50mm 1.7 which dates back to my MX/ME Super days and an FA 70-200mm lens bought when I got a Z1 in the early 1990s. Both give good results. To answer Dave Robinson's question 90% of my current work is done on two DA*s, 16-50 and...
Posted by davidtrout on 24/08/2011 - 09:04
The Best Value Pentax Lens?
The 200mm *'s are much rarer than the 300mm *'s (I know I spent 2 years looking for a good one), also back in the film days 300mm was my favourite tele lens, but with the digital crop factor 200 has replaced it (for me).
Posted by LennyBloke on 24/08/2011 - 09:39
Lens - decisions decisions (wrong ones)
Is that the 17-50 or the 17 prime ? I don't think many landscape photographers use UWA lenses because of the distortion. On FF many would use 24 or 28mm (16-19mm on APS-C) and historically I think 15 was generally the maximum UWA lens (10mm on APS-C), but because the quality of UWA was not great...
Posted by Frogfish on 24/08/2011 - 08:56
Lens - decisions decisions (wrong ones)
The front 17-50mm fixture can come "undone" and the focus becomes a bit variable. There is an easy fix for this but just check all is solid at the front end. It is a sharp lens but suffers slight distortion at 17mm.
Posted by dougf8 on 25/08/2011 - 08:09
Lens - decisions decisions (wrong ones)
The front 17-50mm fixture can come "undone" and the focus becomes a bit variable. There is an easy fix for this but just check all is solid at the front end. It is a sharp lens but suffers slight distortion at 17mm. Love the cats - White Cat, Anti Cat is a blast!
Posted by pammihooper on 25/08/2011 - 13:10
