Re: Couldn't wait to get my new Pentax full-frame

2016-03-21 Thread P.J. Alling
It's very dense. Almost a black hole, a veritable gravity lens as it were. On 3/21/2016 1:46 AM, Larry Colen wrote: Steve Cottrell wrote: On 20/3/16, Mark Roberts, discombobulated, unleashed: That's a 1958 Pentax K screw-mount. Definitely full-frame 35mm ;-) Then you might want a new

Re: Couldn't wait to get my new Pentax full-frame

2016-03-21 Thread steve harley
On 2016-03-20 23:46 , Larry Colen wrote: WTF is "Neutrino coatings"? it seems to be a trademark: but it will be fascinating to see how often the phrase is uncritically repeated -- PDML Pentax-Discuss Mail List

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Larry Colen
Steve Cottrell wrote: On 20/3/16, Mark Roberts, discombobulated, unleashed: That's a 1958 Pentax K screw-mount. Definitely full-frame 35mm ;-) Then you might want a new full-frame lens for it. Interestingly this new 15mm/2.4 from Irix comes in a PK mount..

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread John
Firefly has a lighter weight by about 75 grams. On 3/20/2016 12:32 PM, P.J. Alling wrote: Funny, the specifications only show weights for Nikon and Canon mounts, and even after reading the description I have no idea what the actual difference in the Firefly and Blackstone editions accounts for

RE: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread John Coyle
-Original Message- From: PDML [mailto:pdml-boun...@pdml.net] On Behalf Of Mark Roberts Sent: Monday, 21 March 2016 05:07 To: Pentax-Discuss Mail List <pdml@pdml.net> Subject: Couldn't wait to get my new Pentax full-frame ...so I got an old one to tide me over

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Ken Waller
My suggestion also. He did my 70-210 F awhile back in a timely manner and at the amount he quoted me. He keeps a supply of older cameras on hand for spare parts. -Original Message- >From: James King <jamesk8...@mac.com> >Subject: Re: Couldn't wait to get my new Penta

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Mark C
Another vote for Erik Hendrickson - he's done a couple repairs for me and does first rate work at reasonable prices. On 3/20/2016 5:30 PM, Mark Roberts wrote: Mark Roberts wrote: ...so I got an old one to tide me over: http://www.robertstech.com/temp/fullframe.jpg That's a 1958 Pentax K

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread P.J. Alling
http://pentaxs.com/ Eric Hendrickson has been mentioned on the list before. He doesn't do digital. On 3/20/2016 5:30 PM, Mark Roberts wrote: Mark Roberts wrote: ...so I got an old one to tide me over: http://www.robertstech.com/temp/fullframe.jpg That's a 1958 Pentax K screw-mount.

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread James King
Mark Roberts wrote on Sun, 20 Mar 2016 11:32:46 -0700 > Oh, by the way: It doesn't actually work. The shutter sticks, although it > seems to be in very nice condition other than that. Anyone know > where I might get it repaired? (If I can afford it)* Mark, I’m pretty sure that Eric

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Jack Davis
CRIS(?) J - Original Message - From: "Mark Roberts" <postmas...@robertstech.com> To: "Pentax-Discuss Mail List" <pdml@pdml.net> Sent: Sunday, March 20, 2016 2:30:00 PM Subject: Re: Couldn't wait to get my new Pentax full-frame Mark Roberts wrote: >...

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Mark Roberts
Mark Roberts wrote: >...so I got an old one to tide me over: >http://www.robertstech.com/temp/fullframe.jpg > >That's a 1958 Pentax K screw-mount. Definitely full-frame 35mm ;-) Oh, by the way: It doesn't actually work. The shutter sticks, although it seems to be in very nice condition other

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Matthew Hunt
On Sun, Mar 20, 2016 at 2:07 PM, Igor PDML-StR wrote: > I would be curious to see what type of software they actually use. Zemax, OSLO, and Code V are widely-used optical design applications. -- PDML Pentax-Discuss Mail List PDML@pdml.net

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Igor PDML-StR
I suspect that there are two reasons why it became easier to design these ultra-wides: 1. New glass material with a higher refractive index, and 2. Computerized design (possibly some optical CAD package?) where you can model what you get without actually building the lens. I would be

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread P.J. Alling
I don't know there seem to be a plethora for new Ultra Wide, 14-15mm, Full Frame 35mm lenses. From Samyang, with it's multiple re-brands and and it's various iterations to the Zeiss 15mm Distagon, all of them seem to be manual focus, which doesn't seem like a big deal since at f4 everything is

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Igor PDML-StR
But it is weightless with P-K. :-) It looks interesting, even though it is MF. Is something known about this brand/design (beyond what's written on this website)? What would make it competitive to Samyang/Rokinon 14/2.8? It's half a step(stop) faster. They've got some accessories... In any

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread P.J. Alling
Just as aside, if a company is making manual focus Nikon version, it's probably not all that difficult to slap a KA mount on that baby, in the hopes of adding a few more units to sales. On 3/20/2016 12:21 PM, Steve Cottrell wrote: On 20/3/16, Mark Roberts, discombobulated, unleashed: That's

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread P.J. Alling
Funny, the specifications only show weights for Nikon and Canon mounts, and even after reading the description I have no idea what the actual difference in the Firefly and Blackstone editions accounts for the difference in weight. I really do hate advertising copy. On 3/20/2016 12:21 PM,

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Jack Davis
:07:22 PM Subject: Couldn't wait to get my new Pentax full-frame ...so I got an old one to tide me over: http://www.robertstech.com/temp/fullframe.jpg That's a 1958 Pentax K screw-mount. Definitely full-frame 35mm ;-) -- Mark Roberts - Photography & Multimedia www.robertstech.com --

Re: Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Steve Cottrell
On 20/3/16, Mark Roberts, discombobulated, unleashed: >That's a 1958 Pentax K screw-mount. Definitely full-frame 35mm ;-) Then you might want a new full-frame lens for it. Interestingly this new 15mm/2.4 from Irix comes in a PK mount.. Might even work

Couldn't wait to get my new Pentax full-frame

2016-03-20 Thread Mark Roberts
...so I got an old one to tide me over: http://www.robertstech.com/temp/fullframe.jpg That's a 1958 Pentax K screw-mount. Definitely full-frame 35mm ;-) -- Mark Roberts - Photography & Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net