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sigma 135-400 apo

reso
Posted 04/06/2012 - 11:48 Link
anybody used this lens? whats it like at 400
k5iis k3ii sigma 10-20 hsm tamron 17-50 pentax faj 18-35 pentax da 18-135 tokina 20-35 tokina 28-70 atx pro pentax dfa 100 wr
pentax da*50-135 pentax da plm 55-300 sigma apo 150-500 hsm os
Pentax af aw 1.4 rear converter and a flash
Smeggypants
Posted 04/06/2012 - 16:44 Link
reso wrote:
anybody used this lens? whats it like at 400

I have it and love it. it's excellent at 135 to 350 and then is less sharp at 400. It's not a problem in practise as I just limit it to around 350. It's a fairly rapid fall off begtween 350 and 400. Cropping at 350 is better than 400

Highly recommended. Given the great K-5 ISO performance I even use it indoors with no flash.
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Algernon
Posted 04/06/2012 - 17:07 Link
Reasonable performance in good light. Should be OK
in the summer at f/8.
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
Smeggypants
Posted 04/06/2012 - 17:41 Link
I would say mine is way more than 'reasonable'
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Algernon
Posted 04/06/2012 - 17:48 Link
Depends on what your using it for, I'm referring to birding
which does need good light with both the Sigma and my Tokina
80-400mm. You need something like the DA*300mm in poor light
but that's not as handy as a zoom.
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
Smeggypants
Posted 04/06/2012 - 17:54 Link
Depends on the ISO performance of the camera too.

I would of course love a 135-400 F/2.8 straight through, but better ISO performance does compensate
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
reso
Posted 05/06/2012 - 13:43 Link
thanks for the comments i will start saving

phill
k5iis k3ii sigma 10-20 hsm tamron 17-50 pentax faj 18-35 pentax da 18-135 tokina 20-35 tokina 28-70 atx pro pentax dfa 100 wr
pentax da*50-135 pentax da plm 55-300 sigma apo 150-500 hsm os
Pentax af aw 1.4 rear converter and a flash
arno
Posted 07/06/2012 - 13:09 Link
Any views on whether this is worth getting given I already own the 55-300mm? How do the two compare up to 300mm? If the Sigma comes off worse in that range, not sure it's really worthwhile for me
Algernon
Posted 07/06/2012 - 16:23 Link
arno wrote:
Any views on whether this is worth getting given I already own the 55-300mm? How do the two compare up to 300mm? If the Sigma comes off worse in that range, not sure it's really worthwhile for me

It's worth it for the extra 100mm..... 300 is just too short
for wildlife.
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
arno
Posted 07/06/2012 - 19:10 Link
Cheers - the immediate "need" is some Olympics events I will be attending. This seems quite a reasonable way of getting some extra reach but if the quality falls away a lot approaching 400mm, I am wondering whether I would be better off just cropping the 300mm. I have a K5 so from a pixel point of view there is room for a bit of cropping
Blythman
Posted 07/06/2012 - 19:38 Link
Not considered a Sigma 150-500?
Alan


PPG
Flickr
arno
Posted 07/06/2012 - 21:08 Link
Considered, but it looks a lot bigger and more expensive
Mike_L_76
Posted 08/06/2012 - 00:53 Link
I was very disapointed in my copy of the 135-400. Beyond 320mm it got softer to the point I didn't ever use it beyond 350mm, it needed to be stopped down to f8 to get satisfactory results. I'm very happy with the 150-500 I replaced it with.
Algernon
Posted 09/06/2012 - 14:56 Link
Here's a couple I've posted before using the Sigma 135-400mm
on a Pentax K20D

Mallard at ????? unknown

Comment Image


Robin 1 at 400mm

Comment Image


-
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
smudge
Posted 09/06/2012 - 17:54 Link
If it is for Olympic events keep in mind that you will not be allowed to bring in any photo equipment more than 300mm long (physical length not focal length). Fortunately most lenses are shorter than that but when attached to the camera it could be a close thing.
Regards, Philip

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