Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-17 Thread Bill
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-

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-17 Thread JC OConnell
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-17 Thread Bill
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-17 Thread JC OConnell
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-17 Thread Bill
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-17 Thread Bill
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-16 Thread Alan C
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-16 Thread JC OConnell
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-16 Thread Bill
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-16 Thread Alan C
-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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-16 Thread JC OConnell
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-16 Thread JC OConnell
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-15 Thread Alan C
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-15 Thread JC OConnell
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

Re: sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-15 Thread John Sessoms
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

sample photos. - smc pentax A 100mm F2.8 MACRO at middle distances w/K-1

2022-06-15 Thread JC OConnell
https://jchriso.com/temp/smc100.htm   This is a great all around lens.   jco -- %(real_name)s Pentax-Discuss Mail List To unsubscribe send an email to pdml-le...@pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.