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05-06-2016, 03:32 AM   #1
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Pentax FA31mm F1.8 with K1

How's the quality of FA31 on K1???

05-06-2016, 03:35 AM   #2
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Oh Yeah!
05-06-2016, 03:44 AM   #3
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It's great and now it's the field of view it was intended for.
05-06-2016, 05:48 AM   #4
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Would love to see some photos with the K-1 and 31 or 77 legendary lens combos!!

05-06-2016, 07:47 AM   #5
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QuoteOriginally posted by pghwarrior23 Quote
Would love to see some photos with the K-1 and 31 or 77 legendary lens combos!!
Don't forget the 43.

Reports indicate that it's doing very well indeed as a normal lens on the K-1. Check out "robthebloke" on this forum.

---------- Post added 05-06-16 at 11:51 PM ----------

QuoteOriginally posted by x-country Quote
It's great and now it's the field of view it was intended for.
Yes - looking forward to seeing street photography shots from the 31.

Last edited by KDAFA; 05-06-2016 at 07:55 AM.
05-06-2016, 11:38 AM - 5 Likes   #6
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Here are a few shots using FA limited lenses on K-1, (Source)


31mm f/1.8:














43mm f/1.9:














77mm f/1.8












Last edited by odyseuss; 05-06-2016 at 11:44 AM.
05-07-2016, 02:27 PM   #7
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looks pretty good!

05-07-2016, 11:18 PM   #8
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QuoteOriginally posted by odyseuss Quote
Here are a few shots using FA limited lenses on K-1, (Source)


31mm f/1.8:














43mm f/1.9:














77mm f/1.8











Very nice images. How was the focus hit rate and did you have to apply any adjustments to the lenses?
05-08-2016, 12:32 AM   #9
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QuoteOriginally posted by creative69 Quote
Very nice images. How was the focus hit rate and did you have to apply any adjustments to the lenses?
These are not my photos. I found them from this blog.
But I do have K-1 + 3 FA limited prime lenses. It appears that I don't have to apply any focus adjustment on them, at least for the lenses I own.
05-08-2016, 01:51 AM   #10
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I guess 31mm is suitable for both landscape and portrait ,right? XD
05-08-2016, 02:50 AM   #11
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QuoteOriginally posted by pghwarrior23 Quote
Would love to see some photos with the K-1 and 31 or 77 legendary lens combos!!

Please look at the Pentatians in Singapore testing out the various lenses.

The Pentax K1 Thread! - Post all your K1 picts and impressions
05-08-2016, 03:28 AM   #12
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Shot quite a bit yesterday with the FA20' FA31, FA77, and Da300mm. Photos tonight when I return home.

As expect the FA20 is a wicked UWA lens and its use will be limited as such. The FA31 is just right and the DOF is amazing (as is the bokeh). I could pick out a single flower in a field as the focal point. Of course the 77 was great but I was also impressed with the DA300mm. Switching between crop and FF was a snap so photos of Eagles in flight were possible at high mag.

This is just a wicked great machine. Also impressed how the focus snaps in with authority compared to my K3.

C Durfor
05-08-2016, 04:32 AM   #13
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QuoteOriginally posted by matthewxavier Quote
I guess 31mm is suitable for both landscape and portrait ,right? XD
The suitability of the 31 for portraiture will depend very much on what sort of effect you are trying to achieve.

Remember that in APS-C, the 31 works out to a normal focal length, but in Full-frame it is wideangle.

Thus when we speak of portraiture, this point must be kept in mind. Are you intending to photograph a group of people? Or individual?

Note also that wideangle lenses will generate perspective distortion, which is natural. Specifically in the context of portraiture, this means that one must be careful when composing the picture, to avoid an "unpleasant" or "unnatural" looking distortion effect.

This problem doesn't arise when using normal focal length (FA43) or telephoto (FA77). Also, telephoto lens will generate depth compression, which many people find to be a desirable effect, especially for portraits of individuals.

Not saying you can't use the 31 for portraiture. It depends what type of portraiture, and what kind of effect/result you are looking for.

---------- Post added 05-08-16 at 08:42 PM ----------

QuoteOriginally posted by odyseuss Quote
Here are a few shots using FA limited lenses on K-1
Looks very promising! More so if viewed in flickr.

For the FA31, very sharp in the corners when stopped down to f4.0 (picture #4, flowers in the top left corner).

For the FA43, impressive sharpness at f1.9 (ie. wide-open aperture), seen in picture #6, where we can see the individual strands of fur at the back of the cat's head.

Also, very beautiful bokeh, picture #8.

Last edited by KDAFA; 05-08-2016 at 05:06 AM.
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