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03-06-2008, 11:57 PM   #16
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QuoteOriginally posted by creampuff Quote
As an aside, a doctor friend who's an eye specialist told me the light transmission and visual acuity of someone in their mid-40s can be as much as 30% less than a person at 20.
Awesome! That means that when my MF is off, you folks won't notice it quite as much!

03-07-2008, 12:15 AM   #17
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QuoteOriginally posted by frank Quote






Wow, Frank. You did it well with f1.2!! I had formed a conclusion about f1.2 - it is inhumane to focus with that aperture. You nailed it well with the eyes in perfect focus, blurring the rest.

So many factors to take into account - no tremur, no breathing, no tilting of the camera and everything needs to be freezed in an instant. Not even momentum with the shutter click
03-07-2008, 12:10 PM   #18
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QuoteOriginally posted by frank Quote
When I'm using the A50/1.2 lens, I always use it at wide open aperture. That's why I paid for such a premium price for it
My K cost me $25.

Australian.

In 2005 dollars.
03-07-2008, 02:11 PM   #19
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QuoteOriginally posted by lithos Quote
My K cost me $25.

Australian.

In 2005 dollars.
That is a sin!!!! I paid 12 times more for that lens!

03-07-2008, 02:34 PM   #20
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funny enough...

I actually just shot my FA50 @ F1.4 for the first time at a Windsor Spitfire hockey game last night. To my eye, it's nice and sharp. However, the purple fringing was ATROCIOUS.

*ist DS, FA50mm, 1/320th, F1.4, ISO 400
Cropped and resized, no other PP

See below.

Last edited by SouthShoreRob; 02-09-2009 at 02:51 PM.
03-18-2008, 04:47 AM   #21
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i also shot with my fa 50 1.4; only outdoors at night, panning- purple fringing = hateful!!!

view the exif FormulaDFinal2007 500 on Flickr - Photo Sharing!

and a sample at f2.0

view the exif
Flickr: More detail about FormulaDFinal2007 515
03-18-2008, 01:29 PM   #22
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QuoteOriginally posted by creampuff Quote
I find this is where an AF lens really outshine their manual focus counterparts. Having had an A 50mm f/1.7, an A 50mm f/2 and two FA 50mm f/1.4, I find shooting is way quicker and more accurate with the FA.
It all depends on the camera, I never had problems nailing focus using my A50/1.2 on my LX but with the *ist D it was more difficult and with the K10D it was pretty much hit and miss.
03-18-2008, 06:20 PM   #23
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QuoteOriginally posted by distudio Quote
It all depends on the camera, I never had problems nailing focus using my A50/1.2 on my LX but with the *ist D it was more difficult and with the K10D it was pretty much hit and miss.
Then you probably should give the new K20D a try I found it's quite a big step up in focusing accuracy (both AF and MF).

Here are several shots w/ a K50/1.4 and K20D, all wide open ones:






And a 100% crop:



After some 2 weeks use, I feel the keeper ratio is higher than w/ the K10D camera.

03-19-2008, 02:40 PM   #24
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Geez Frank, those shots are amazing.
03-20-2008, 02:51 AM   #25
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QuoteOriginally posted by APEHAUS Quote
Geez Frank, those shots are amazing.
Thanks Glad you like them.
03-20-2008, 06:09 AM   #26
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A 1.4 lens can deliver interesting bokeh.

Like in this image I shot with a Zeiss 50mm f/1.4 fully open (this is a composition using about 1/2 crop of the original).

I really love the foreground heads "painted" against the background.
[IMGWIDELEFT]https://www.pentaxforums.com/gallery/images/5395/1_glyptokids.jpg[/IMGWIDELEFT]
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