The problem is related to lack of Multi-coating on the rear element
which was absent on pre-digital lenses. More commonly this gives rise to
ghosting (back-and-forth reflections) when these old lenses are used on
digital camera because the sensors are much more reflective than film.
The
the lens is not "quite prone" to hot spots w/ K-1.; I havent seen any yet.
Maybe under certain rare conditions. Secondly an AF lens is not as good
or better than a MF lens, its just different.
jco
-Original Message-
From: Pentax-Discuss Mail List
Sent: Jun 16, 2022 10:29 AM
To:
On 6/15/2022 4:56 PM, JC OConnell wrote:
https://jchriso.com/temp/smc100.htm
This is a great all around lens.
The A100/2.8 was a great lens, but it is quite prone to reflections off
the sensor giving hot spots on the image. I suspect it is related to the
FREE design and the absolutely
Yes, you're right - perhaps I should see if I can arrange a swap?
Alan C
On 16-Jun-22 08:14 AM, JC OConnell wrote:
for APSC BODIES I usually prefer the A50/2.8 Macro
jco
-Original Message-
From: Pentax-Discuss Mail List
Sent: Jun 16, 2022 1:08 AM
To:
Subject: Re: sample photos. - smc
there was a stray leaf in the image i used the smudge tool to cover it up
rather crudely-
-Original Message-
From: Pentax-Discuss Mail List
Sent: Jun 16, 2022 2:25 AM
To: Pentax-Discuss Mail List
Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances
w/K-1
for APSC BODIES I usually prefer the A50/2.8 Macro
jco
-Original Message-
From: Pentax-Discuss Mail List
Sent: Jun 16, 2022 1:08 AM
To:
Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances
w/K-1
Agree. I still have my FA 100/2.8 which has the same formula
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