Re: My first A* Lens
Except that the A letter designation tells you lens functionality (IE it denotes that the lenses are KA mount instead of K) which is far more important information than whether or not the lens is a compact design, as the mount type determines functionality with the camera. -Adam On 4/5/08, J. C. O'Connell <[EMAIL PROTECTED]> wrote: > i Stand by what I said earlier, the designation A or A* is no > good because it only tells you that the lens has auto aperture > or auto aperture high performance. > There is no way of knowing whether any particular A or A* is > a compact design the way the K an M told designations told you. > > jco > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of P. > J. Alling > Sent: Saturday, April 05, 2008 11:51 AM > To: Pentax-Discuss Mail List > > Subject: Re: My first A* Lens > > > > In this case it probably means both. The A* is identical to the M* 300 > in every way including performance, which is very, very good in my > experience. It is however a very compact lens and it does have it's > limitations. It isn't particularly close focusing, well that does seem > to be it's major limitation. The example I showed was a real world > shot. I started to enumerate the reasons why this shot wasn't perfect > but gave up. I don't know why I respond to any of JCO's posts even at > third hand, he's always finds the dark cloud around the silver lining. > > Doug Franklin wrote: > > J. C. O'Connell wrote: > > > > > >> UNLESS, does A* mean compact A? I always thought it meant > >> high performance A, not compact A. > >> > > > > I always thought it meant high performance A, too. > > > > > > > -- > Vote for Cthulhu. Why settle for a lesser evil... >-- Dr. Jerry Pournelle > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: My first A* Lens
i Stand by what I said earlier, the designation A or A* is no good because it only tells you that the lens has auto aperture or auto aperture high performance. There is no way of knowing whether any particular A or A* is a compact design the way the K an M told designations told you. jco -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of P. J. Alling Sent: Saturday, April 05, 2008 11:51 AM To: Pentax-Discuss Mail List Subject: Re: My first A* Lens In this case it probably means both. The A* is identical to the M* 300 in every way including performance, which is very, very good in my experience. It is however a very compact lens and it does have it's limitations. It isn't particularly close focusing, well that does seem to be it's major limitation. The example I showed was a real world shot. I started to enumerate the reasons why this shot wasn't perfect but gave up. I don't know why I respond to any of JCO's posts even at third hand, he's always finds the dark cloud around the silver lining. Doug Franklin wrote: > J. C. O'Connell wrote: > > >> UNLESS, does A* mean compact A? I always thought it meant >> high performance A, not compact A. >> > > I always thought it meant high performance A, too. > > -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: My first A* Lens
In this case it probably means both. The A* is identical to the M* 300 in every way including performance, which is very, very good in my experience. It is however a very compact lens and it does have it's limitations. It isn't particularly close focusing, well that does seem to be it's major limitation. The example I showed was a real world shot. I started to enumerate the reasons why this shot wasn't perfect but gave up. I don't know why I respond to any of JCO's posts even at third hand, he's always finds the dark cloud around the silver lining. Doug Franklin wrote: > J. C. O'Connell wrote: > > >> UNLESS, does A* mean compact A? I always thought it meant >> high performance A, not compact A. >> > > I always thought it meant high performance A, too. > > -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: My first A* Lens
The A* 300/4 is exactly the same as the M* 300/4 except for the A
button and setting, which is why it is so M-ish. It is a good lens,
although I think the optical quality is somewhat compromised compared
to other 300mm lenses I've used, as a result of its size. This does
not mean that it isn't a great performer.
According to Cecchi a few other A lenses are also minor updates of the
equivalent M, and therefore presumably also as compact: 15/3.5, 35/2,
50/1.2, 100/2.8, 50/2, 100/4, 28/2.8, 35/2.8, 50/1.4, 50/1.7, 200/4,
24-50/4. I think some of these are in turn the same as their K
equivalents.
I have some Pentax lens catalogues somewhere in which they state that
the * designation refers to high performance glass, typicaly with
fluoride or asymmetric elements.
Bob
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of J. C. O'Connell
> Sent: 05 April 2008 05:29
> To: 'Pentax-Discuss Mail List'
> Subject: RE: My first A* Lens
>
> I realized Pentax may have made a big goof with their lens
> designations
> with the A series. There was no designation for COMPACT fully
> auto ("A") lenses. If there was, the A*300/4 would be the most
> "M"ish "A" lens ever. I still cant believe how short it is. If I
> knew that I would have bought it a long time ago. Pentax blew
> it with their lens designations for sure. They should have called
> the compact A lenses "MA" or something similar, not just A.
> UNLESS, does A* mean compact A? I always thought it meant
> high performance A, not compact A.
> jco
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RE: My first A* Lens
Yeah, I just did some browsing in the Pentax A lens catalogs and they made a bunch of HUGE A* lenses so A* couldnt have meant compact A. they had no designation for compact A lenses, let alone compact A* lenses, that is bad! They should have called them MA and MA* in my honest opinion, but that might have been confusing, but so is making really new compact A lenses that you used to designate as new compact (M)and then you stop designating them as new compact. This 300 A* F4 lens is amazing in the compactness of it's length. I wouldnt have even thought it was possible for any 300mm lens, let alone a really good 300mm lens.. jco -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Doug Franklin Sent: Saturday, April 05, 2008 2:02 AM To: Pentax-Discuss Mail List Subject: Re: My first A* Lens J. C. O'Connell wrote: > UNLESS, does A* mean compact A? I always thought it meant > high performance A, not compact A. I always thought it meant high performance A, too. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: My first A* Lens
J. C. O'Connell wrote: > UNLESS, does A* mean compact A? I always thought it meant > high performance A, not compact A. I always thought it meant high performance A, too. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: My first A* Lens
I realized Pentax may have made a big goof with their lens designations
with the A series. There was no designation for COMPACT fully
auto ("A") lenses. If there was, the A*300/4 would be the most
"M"ish "A" lens ever. I still cant believe how short it is. If I
knew that I would have bought it a long time ago. Pentax blew
it with their lens designations for sure. They should have called
the compact A lenses "MA" or something similar, not just A.
UNLESS, does A* mean compact A? I always thought it meant
high performance A, not compact A.
jco
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of P.
J. Alling
Sent: Saturday, April 05, 2008 12:38 AM
To: Pentax-Discuss Mail List
Subject: Re: My first A* Lens
This is a fantastic lens
http://www.mindspring.com/~distilfink/PESO%20--%20theegretislanding.html
Taken with the A*300 f4.0 and F 1.7x AF adapter
Doug Franklin wrote:
> J. C. O'Connell wrote:
>
>> Athough better late than never, I just got my first SMC PENTAX-A*
>> lens today, the A* 300mm F4.0. I cant believe the small size in
>> length,
>>
>
> If it's half as good as the F* 300/4.5 it's an awesome lens.
> Congratulations.
>
>
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-- Dr. Jerry Pournelle
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Re: My first A* Lens
This is a fantastic lens http://www.mindspring.com/~distilfink/PESO%20--%20theegretislanding.html Taken with the A*300 f4.0 and F 1.7x AF adapter Doug Franklin wrote: > J. C. O'Connell wrote: > >> Athough better late than never, I just got my first SMC PENTAX-A* lens >> today, the A* 300mm F4.0. I cant believe the small size in length, >> > > If it's half as good as the F* 300/4.5 it's an awesome lens. > Congratulations. > > -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: My first A* Lens
J. C. O'Connell wrote: > Athough better late than never, I just got my first SMC PENTAX-A* lens > today, the A* 300mm F4.0. I cant believe the small size in length, If it's half as good as the F* 300/4.5 it's an awesome lens. Congratulations. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
