TC1.4 + Sigma 100-300 f4


Irek

Link Posted 04/11/2019 - 18:48
Hello All,

By any chance anyone using Pentax tc x1.4 with Sigma 100-300 f4 ?
I seen many reviews about tc and da 300f4 but can't find anything about Sigma.
If anyone give me any advice about Sigma 100-300 and Pentax tc x1.4 I will by vary thankfull.

Thank you.
Pentax ME-F, MZ-3 RIP, MZ-S, K-1
Irix 15mm F2.4, Pentax D-FA 24-70mm F2.8, FA 31mm F1.8 Ltd, FA 43mm F1.9 Ltd, FA 77mm F1.8 Ltd, Sigma 100-300 F4 + TC 1.4x, AF 540 FGZ
Ricoh GR III
Hitech-Formatt 10% off all filters code - CIEJ10

reso

Link Posted 04/11/2019 - 20:11
Drop Mike p a message he has had a sigma 100-300 and used it with a pentax 1:4 converter
k5iis sigma 10-20 3,5 hsm pentax da 16-45 f4 tamron 17-50 2.8 pentax 17-70 f4 sigma 18-125 hsm pentax sigma 50-200 hsm os
sigma 50-500 apo dg os kenko 1.5 pz af 1.5 tele tamron pz af 2.0 tele and a flash
pentax *ist film camera

Helpful

Chrism8

Link Posted 05/11/2019 - 07:21
I've had a Sigma 100-300 for about 25 years, its one of the early ones with the peeling paint, but the optics are superb and and its a cracking lens, I've used mine on film camera's as well as a K5ii / K3ii and a K1, I have had it with the matched 1.4 TC but with digital I prefer to crop and keep the maximum aperture.

The lens hooked to the K3ii is my go to setup for aircraft, particularly the Mach Loop or sat at the end of the runway at Brize Norton.

K3ii - Sigma 100 - 300 F4 @ 200mm - F20 - 100 ISO - 1/80 sec




K3ii - Sigma 100 - 300 F4 @ 100mm - F5.6 - 3200 ISO - 1/2000 sec



Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

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K1 - 85mm F1.4, Pentax 150 -450 F4.5 / 5.6, Pentax FA 24 - 70 F2.8

Sigma 100-300 F4, Samyang 14mm F2.8, Sigma 70-200 F2.8,

K5iis - Sigma 17 - 70 F2.8, Sigma 70 - 300 F3.5/F5.6, Sigma 18 - 200 F3.6 / F4.5.

Helpful

Irek

Link Posted 05/11/2019 - 08:55
Hi Chris,

Are You using Sigma 100-300 with Pentax tc x1.4 ?

Thank you.
Pentax ME-F, MZ-3 RIP, MZ-S, K-1
Irix 15mm F2.4, Pentax D-FA 24-70mm F2.8, FA 31mm F1.8 Ltd, FA 43mm F1.9 Ltd, FA 77mm F1.8 Ltd, Sigma 100-300 F4 + TC 1.4x, AF 540 FGZ
Ricoh GR III
Hitech-Formatt 10% off all filters code - CIEJ10

Chrism8

Link Posted 05/11/2019 - 10:10
Not any more, prefer to maintain F4 and crop as required.
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - 85mm F1.4, Pentax 150 -450 F4.5 / 5.6, Pentax FA 24 - 70 F2.8

Sigma 100-300 F4, Samyang 14mm F2.8, Sigma 70-200 F2.8,

K5iis - Sigma 17 - 70 F2.8, Sigma 70 - 300 F3.5/F5.6, Sigma 18 - 200 F3.6 / F4.5.

Helpful

Irek

Link Posted 05/11/2019 - 10:21
I understand, but Pentax tc it works fine with sigma 100-300 yes ?
I want to know if AF works fine.
Pentax ME-F, MZ-3 RIP, MZ-S, K-1
Irix 15mm F2.4, Pentax D-FA 24-70mm F2.8, FA 31mm F1.8 Ltd, FA 43mm F1.9 Ltd, FA 77mm F1.8 Ltd, Sigma 100-300 F4 + TC 1.4x, AF 540 FGZ
Ricoh GR III
Hitech-Formatt 10% off all filters code - CIEJ10
Last Edited by Irek on 05/11/2019 - 10:36

Mike-P

Link Posted 05/11/2019 - 12:03
AF works ok (obviously not as good as withought though) and unlike the Sigma teleconverters it even reports the correct focal length in the exif for image stabilisation. Remember it's not a full frame converter though so if it's for the K-1 you have to shoot in crop mode. Works extremely well on the K-3II.

Click on pics for decent quality.


RIAT 2018 by Mike.Pursey, on Flickr


Blue Moon 31st January 2018 by Mike.Pursey, on Flickr


Tern - Blashford Lakes by Mike.Pursey, on Flickr


RIAT 2018 by Mike.Pursey, on Flickr


RIAT 2018 by Mike.Pursey, on Flickr
No equipment list here but thanks for taking an interest. My Flickr
Last Edited by Mike-P on 05/11/2019 - 12:04

Helpful

Irek

Link Posted 05/11/2019 - 13:06
@Mike-P Thank you so much
Pentax ME-F, MZ-3 RIP, MZ-S, K-1
Irix 15mm F2.4, Pentax D-FA 24-70mm F2.8, FA 31mm F1.8 Ltd, FA 43mm F1.9 Ltd, FA 77mm F1.8 Ltd, Sigma 100-300 F4 + TC 1.4x, AF 540 FGZ
Ricoh GR III
Hitech-Formatt 10% off all filters code - CIEJ10
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