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04-17-2018, 03:35 AM   #76
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Nice. AF works also with the 1.4 Sigma TC in?

04-17-2018, 03:47 AM   #77
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QuoteOriginally posted by Andrea K Quote
AF works also with the 1.4 Sigma TC in?
Sure. It's just screw drive AF and the effective aperture is f/5.6, so no problem for the camera.
04-17-2018, 03:55 AM   #78
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Then SIGMA 100-300 f/4 and his TC are a terrific combo!
04-17-2018, 03:12 PM   #79
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Sigma 1.4

Hi Andrea K
I didn't notice any difference with the converter on.
Did notice the weight of this lens ! The monopod will be
out with me and this lens next time !!

04-17-2018, 03:29 PM   #80
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K-3II, Sigma 100-300mm DG EX f/4 and Pentax WR 1.4x teleconverter.


Blue Moon 31st January 2018
by Mike.Pursey, on Flickr
04-18-2018, 03:14 AM - 1 Like   #81
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From the Adelaide University flute symposium, Michael Cox - Principal flute of the BBC orchestra:


Pentax K5IIs - Sigma 100-300mm f/4 APO EX DG @ 220mm 1/60th f/5.6 ISO 3200

With steady hands, the Sigma 100-300mm f/4 truly excels at concert photography.
10-06-2019, 11:18 AM - 1 Like   #82
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I just picked up a really nice Sig 100-300 F4 from a forum member (thanks Sergy!) Literally have had less than 24 hours so haven't played too much yet, but based on what I have shot I really like this lens. Its heavy but barely hand holdable..Thats how these shots were done. It was a pretty cloudy and windy day at the shore and I really should have used a tripod, but if it shoots this good in adverse conditions, I'm going to love it in better ones.

K3 works well with this lens though I did end up bumping up the AF +4


-al

pp in darktable with slight sharpening, slight saturation increase, some are cropped. minimal processing for most.

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10-06-2019, 11:26 AM   #83
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Good to see that you are already having fun with it
10-06-2019, 12:34 PM   #84
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Fantastic lens.

Too bad Sigma threw the towel in terms of supporting K-mount. However, this particular lens had been discontinued a long time ago anyhow.
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