I agree about the color cast, but the body position of the two girls is 
excellent!  Cheers, Christine


> On Jan 17, 2016, at 6:39 PM, Brian Walters <[email protected]> wrote:
> 
> Nice shot - I agree with Ann about the colour cast but otherwise
> enjoyable.
> 
> I think I had that same lens (or very similar, at least) and used it on
> my film cameras for a while before replacing it with a Pentax F 70-210. 
> I don't think I ever used it on digital.
> 
> Sigma lenses (older ones, anyway) seem to be identified oddly by
> software.  When I had an 18-125 Sigma, it always got identified as
> Pentax F 28-80mm F3.5-4.5, and more than a few of shots taken with the
> lens were outside that focal length range.
> 
> 
> Cheers
> 
> Brian
> 
> ++++++++++++++++++++++++++++++++++
> Brian Walters
> Western Sydney Australia
> http://lyons-ryan.org/southernlight/
> 
> 
> On Mon, Jan 18, 2016, at 09:46 AM, P.J. Alling wrote:
>> Part of a continuing series, (of people, usually young, more interested 
>> in their hand held devices, than the events at hand).
>> 
>> First the PESO
>> 
>> https://dl.dropboxusercontent.com/u/1604247/PESO/PESO%20--%20LifeoftheParty.html
>> 
>> Equipment: Pentax K5II w/Sigma Zoom 70-210mm f4.0~5.6 UC-II
>> 
>> Now a the beginning of a possible multi part review of the afor 
>> mentioned lens.  A series that could be subtitled as "Photography on no 
>> budget".
>> 
>> A little back story.  I've been gifted with this nice, but, pedestrian 
>> Sigma 70-210mm Zoom.  Nothing special, really.  I haven't been able to 
>> find out a lot about it.  It's not current in the Sigma line, but I was 
>> able to find a PDF of an old Sigma Catalog and it was one of their 
>> offerings from 1995.  Which caused a bit trepidation on my part as that 
>> was the tale end of the Sig[nificant] Ma[lfunctions] period of Sigmas 
>> history.
>> 
>> It as near as I can tell it was intended to be an alternative to the OEM 
>> offering in a two lens kit.  I'll compare it to the Pentax F 70-210mmm 
>> though in reality it was more likely competition for the FA 70-200mm.  I 
>> haven't done a lot of shooting with it as yet, the weather's been 
>> miserable, cold and overcast when it's not actually rainy, and like the 
>> F 70-210 it's, kinda slow, so I've been using it mostly indoors bumping 
>> up the ISO quite a bit.  I had to shoot an event this weekend, so I 
>> dropped it into my bag, (it doesn't take up much room and doesn't weigh 
>> much), and shot a few available light of pictures with it.  The PESO 
>> above is one of the results.
>> 
>> So how does this lens stack up?
>> 
>> The build quality pretty good, but, it is mostly plastic.  The aperture 
>> ring has full marked f stops from 4-32 and half click stops for the 
>> whole range.  Where the Pentax F has both a metal inner and outer barrel 
>> the Sigma is all Plastic.  It does have a nice metal, looks like 
>> stainless steel, lens mount.  Aside from the materials the zoom ring is 
>> nicely damped, at least as pleasant as that on the Pentax F.
>> 
>> The focus ring is also nicely damped for an auto focus lens, with a 
>> considerably shorter throw from it's closest focus to infinity than the 
>> F 70-210 which is not damped at all.  I'd say the focus feel is about 
>> that of the Pentax FA 20-35mm maybe even a little better.
>> 
>> There is provision for a bayonet mount lens hood, but it's at least 10 
>> years old so it would be good luck finding one, Sigma certainly doesn't 
>> seem to offer them.
>> 
>> Auto focus using the K-5II is very quick, in all but the dimmest light 
>> it just snaps into focus.
>> 
>> My preliminary judgement on it's optical characteristics is that it's 
>> not quite as good as the Pentax F 70-210mm though I'm not sure how much 
>> image softness is attributable to the the higher ISO's I've been using.  
>> The sigma seems to be softer wide open throughout it's range, and seems 
>> to have lower inherent contrast than the Pentax F, I'll be able to tell 
>> better when I get a chance to shoot in bright sunlight.  It does seem to 
>> sharpen up when stopped down even 1 stop.
>> 
>> I haven't noticed any Chromatic Aberration to speak of and there doesn't 
>> seem to be much in the way distortion either.  Straight lines seem to be 
>> in fact straight.
>> 
>> So what are the drawbacks?  Let's just say for the record that based on 
>> what I paid for it, there are none.  I got it for free.  However there 
>> are a couple of piddly annoyances that I've noticed so far. Pentax 
>> Digital Camera Utility want's to identify this lens as an F 35-105 
>> f4-5.6 which is certainly interesting when it tells me the photo was 
>> taken at 110mm,  DXO Optics Pro 8 thinks that it's a Sigma 70-300 and 
>> wants to apply those lens corrections.  At least they got the 
>> manufacture correct.  My ancient copy of Photoshop won't even attempt to 
>> identify the lens, even though they are contemporaneous. Using an 
>> electronic flash the exposures can be way off, haven't done much of that 
>> yet, so time will tell.
>> 
>> So what is there to say say.  The Sigma is very compact, a good 7/16 
>> inches shorter than the F 70-210mm at infinity and probably 30% or more 
>> lighter as well.  It takes a 55mm screw in filter, and with a decent 
>> lens hood, to cut down on flare the contrast might even improve wide
>> open.
>> 
>> Would I recommend this lens to others?  At this point I'm not sure. It 
>> seems to be pretty decent.  I've never used a Pentax FA 70-200mm 
>> f4.0~5.6 which is supposed to be not as good as the F 70-210, and I 
>> expect this Sigma can be had for a lot less money when you can find it, 
>> so maybe. I actually kind of like it.
>> 
>> I'll probably get a bit of use out if it, as my F 70-210 is jammed and 
>> I'm not at all sure if it's worth even attempting to get it repaired.
>> 
>> 
>> As usual comments are welcome but may be totally ignored.
>> 
>> -- 
>> I don't want to achieve immortality through my work; I want to achieve
>> immortality through not dying.
>> -- Woody Allen
>> 
>> 
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