Jun 17, 2022 11:37 AM
> To:
> Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle
> distances w/K-1
>
> On 6/16/2022 10:17 PM, Alan C wrote:
> > The problem is related to lack of Multi-coating on the rear element >
> which was absent on pre-
didnt Pentax super multicoat all air glass surfaces starting back in the
early 70's. including rear elements?
jco
-Original Message-
From: Pentax-Discuss Mail List
Sent: Jun 17, 2022 11:37 AM
To:
Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances
w/K-1
nell, wrote:
> I didnt state the problem didnt exist. I stated I hadnt seen the problem
> YET.
> -Original Message-
> From: Pentax-Discuss Mail List
> Sent: Jun 17, 2022 11:37 AM
> To:
> Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle
> d
I didnt state the problem didnt exist. I stated I hadnt seen the problem YET.
-Original Message-
From: Pentax-Discuss Mail List
Sent: Jun 17, 2022 11:37 AM
To:
Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances
w/K-1
On 6/16/2022 10:17 PM, Alan C wrote
On 6/16/2022 10:17 PM, Alan C wrote:
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
On 6/16/2022 4:44 PM, JC OConnell wrote:
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
Well John, I've never been shot by a gun, so I guess
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
2 10:29 AM
To:
Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances
w/K-1
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 th
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
-120/2.8 zoom
Message-
From: Pentax-Discuss Mail List
Sent: Jun 15, 2022 9:50 PM
To:
Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances
w/K-1
Back in film days it was my favorite portrait lens.
I still used it for such with the APS-C Pentax digitals and only
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
List
Sent: Jun 15, 2022 9:50 PM
To:
Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances
w/K-1
Back in film days it was my favorite portrait lens.
I still used it for such with the APS-C Pentax digitals and only recently switched over to the SMC Pentax-D FA 100mm
for portraits I use a k 85/1.8 or my outstanding Tokina ATX 60-120/2.8 zoom
Message-
From: Pentax-Discuss Mail List
Sent: Jun 15, 2022 9:50 PM
To:
Subject: Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances
w/K-1
Back in film days it was my favorite portrait lens
Back in film days it was my favorite portrait lens.
I still used it for such with the APS-C Pentax digitals and only
recently switched over to the SMC Pentax-D FA 100mm F2.8 Macro WR (ran
across a price so good on-line that I couldn't refuse) ... but I still
have the A 100mm F2.8 MACRO for
https://jchriso.com/temp/smc100.htm
This is a great all around lens.
jco
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