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11-30-2006, 11:16 PM   #1
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Fa31mm f1.8 used on k10d

I know Fa31/1.8 tends to blow up highlights a lot as this is a specialty lens designed for low light. I am trying to learn how this lens work on k10d body. I walked through various parks today as my intern let me off the hook to leave work at 10 am!!

I tends to do the shots via subject isolation and deliberately look for shadow areas - hence less likely to produce bland clipped images.

I started the shots of protraits with my work colleague this morning after his overnight shift, really dark in resident quaters in the hospital:


1/350s f/2.0 at 31.0mm iso800 full exif



1/90s f/2.0 at 31.0mm iso400 full exif


Then I tried the shots with various flowers I saw along my afternoon walk with the typical Australian sun - harsh and ruthless

1/180s f/8.0 at 31.0mm iso100 full exif



1/45s f/5.6 at 31.0mm iso400 full exif



1/125s f/11.0 at 31.0mm iso100 full exif



1/20s f/9.5 at 31.0mm iso400 full exif



1/45s f/2.8 at 31.0mm iso100 full exif



1/180s f/8.0 at 31.0mm iso100 full exif



1/45s f/8.0 at 31.0mm iso200 full exif



It seems to me that there is the usual problem of clipping when using bright lens like fa31/1.8 with over 5000 K temperature. Of course the contrast is usually very good when the lens is used in harsh light situation - the colour did not fade unless aperture goes above 11.

In overcast areas, aperture of 4 to 5.6 produce nice texture and colour with good centre sharpness. Colour could still be vibrant even it is blue hues all over in view finder.

Again, My first two protrait shots of my colleague was just a snap shot without any consideration of lighting or background selection. He DID LOOK EXHAUSTED through view finders but the shots looked quite relaxed there (we are buddies).

All shots are taken as jpegs (will try raw next round I guess).




Last edited by roentarre; 11-30-2006 at 11:17 PM. Reason: forgot to add pics
12-01-2006, 05:48 AM   #2
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looks like you had a relaxing walk in the park... The seagulls (even though a boring bird) seem rather interesting in that last shot....

I can't wait to get my K10d tomorrow...
12-01-2006, 12:53 PM   #3
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Yeah, you would love k10d. It has a very nice build. Good grip and feels solid. It has a small lock for opening the SD card and battery as well. Very thoughtful.

Fa31/1.8 works well and relatively fast on the body.

Will see your photos later on.

Cheers
12-02-2006, 08:26 AM   #4
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The FA Limited lenses seem to be very sharp, contrasty, with nice bokeh. I think this is a bit different to the other FA* lenses (inc the 50/1.4 and 85*/1.4 for example), which must be more optimised for colour and tone subtlety, while being a bit softer and less contrasty.

Some of the photos you've posted look fantastic - I like the 3rd and 8th most. The sharpness and colour is fantastic. I reckon it'd make a nice portrait lens too, just that the lighting wasn't really ideal.

If you're concerned about the lenses being too contrasty, it might be worth trying the A50/1.4 and lenses along similar lines FA24/2 and 85/1.4, and I think the 35/2 is also highly rated.

You might be interested in Vuk's review of the DS camera and a few lenses...

"In terms of image rendition, if pressed to make a big deal of differences from the 43 Limited, the first impression I'd offer is that it's a bit more direct or straightforward: just as sharp, but with a pinch less sparkle and lyricism."

Pentax *istDS ? Shoot-From-the-Hip Review

All best,
Duncan.

12-02-2006, 05:00 PM   #5
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QuoteOriginally posted by Duncan J Murray Quote
The FA Limited lenses seem to be very sharp, contrasty, with nice bokeh. I think this is a bit different to the other FA* lenses (inc the 50/1.4 and 85*/1.4 for example), which must be more optimised for colour and tone subtlety, while being a bit softer and less contrasty.

Some of the photos you've posted look fantastic - I like the 3rd and 8th most. The sharpness and colour is fantastic. I reckon it'd make a nice portrait lens too, just that the lighting wasn't really ideal.

If you're concerned about the lenses being too contrasty, it might be worth trying the A50/1.4 and lenses along similar lines FA24/2 and 85/1.4, and I think the 35/2 is also highly rated.

You might be interested in Vuk's review of the DS camera and a few lenses...
Fa31 limited can give the touch of 3d and dream like quality to a photograph and this is a lens i like a lot. I had seen various reviews regarding comparison of fa31 limited vs fa 35/2 : fa 35/2 could even be sharper but the "artistic infliction" is more evident in fa31 limited shots.

Of course my photos did not reveal that quality here but i do think 3d look and dreamlike quality is more likely to enhance in a uniform lighting with narrow dynamic range for the photos. Fa limited tend to bring out that wow factor(sharp but at the same time soft) in protraits.

I read that fa24/2 is soft wide open and it has CA problems. Costing about 455 US dollars on ebay for a few times already

And I already owned fa77 limited since it is more readily available compared to fa85/1.4 few months ago.

p.s. I would never complain the shots straight out of camera too saturated or too contrasty. That is why it is a specialty lens.
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