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05-25-2018, 11:14 AM   #406
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K 3 II + Smc PENTAX-DA* 300mm F4 ED [IF] SDM + HD Pentax-DA 1.4x AW AF Rear Converter

have I mentioned that I like this rear converter

here is a photo from the rapids of the Yellowstone River in Yellowstone National Park

Harlequin Ducks

SOC

crop

crop and pp

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06-16-2018, 03:01 PM   #407
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K-1, DA 1.4x AF & FA*300/2.8

07-07-2018, 10:01 AM - 4 Likes   #408
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Sigma 100-300mm f/4 and 1.4x WR

07-14-2018, 02:45 PM   #409
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The 1.4 pairs nicely with many of our long lenses. The question I always have is what would the photo have been without the TC. I tried testing this with the DA*300 a couple of years ago but grew impatient with the fiddling. I am not happy lens switcher. My bad. Maybe someone with more patience has worked on it.

07-27-2018, 07:57 AM - 2 Likes   #410
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K-3II, Sigma 100-300mm f/4 and Pentax 1.4x WR ... decent combination.


RIAT 2018
by Mike.Pursey, on Flickr
10-03-2018, 11:28 AM   #411
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Bunt Play - Cardinals v. Cubs at Wrigley Field 9/28/18

K 3 II + SMC Pentax-D FA 100mm F2.8 Macro + HD Pentax-DA AF Rear Converter 1.4x AW


SOOC


crop and pp
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10-14-2018, 08:33 AM   #412
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Pentax K-70 with Pentax 1.4x HD converter and 18-300/28-300 F3.5-6.3 lens

Pentax K-70 with Pentax 1.4x HD converter and 18-300/28-300 F3.5-6.3 lens, will auto focus and all work? after loosing that f-stop, please confirm and reply!
11-17-2018, 10:49 AM   #413
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QuoteOriginally posted by Ajay Patil Quote
Pentax K-70 with Pentax 1.4x HD converter and 18-300/28-300 F3.5-6.3 lens, will auto focus and all work? after loosing that f-stop, please confirm and reply!
I guess yes, it will work, I use it with my FA* (old) lense at f5.6, and works, but as you said, you are losing a stop of light...

12-28-2018, 05:40 PM   #414
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I've tried the 1.4x converter with (a) the K-1 and D-FA 150-450, and (b) the K3 and DA 55-300 PLM. Results were soft at best.
Then I tried the 1.4x on the K3 with the DA* 300 (which replaced the 150-450) and got the attached result. This is a 100% crop--I'd say the IQ is quite good. My only reservation regarding this combo has to do with slow autofocus. Maybe I'll try smaller apertures and manual focus.
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