Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-16-2016, 06:50 AM - 1 Like   #16
Pentaxian
Mistral75's Avatar

Join Date: Feb 2009
Location: Paris
Posts: 2,912
QuoteOriginally posted by Sasha Quote
This is interesting... Is Pentax's specifications open too, or they are closed as Nikon and Canon?
The 1977 K-mount is in the public domain since day one; Asahi Optical wanted it to become the bayonet equivalent of the widely used M42 mount.

The electric/electronic protocols (including autofocus and KAF4 aperture command) aren't.

07-16-2016, 07:01 AM   #17
Forum Member
Sasha's Avatar

Join Date: Jul 2016
Location: Rome
Posts: 57
thank you for the enlightment
07-16-2016, 07:58 AM   #18
Veteran Member
Tan68's Avatar

Join Date: Sep 2014
Photos: Albums
Posts: 396
QuoteOriginally posted by D1N0 Quote
Looks like they just added a tube to the back. Might come for dslr as well.
Yes.. many of the Sony lenses for their FF mirrorless system appear to have that tube grafted onto the back. It is a built-in adapter to adjust the registration distance of the small bodied FF to work with FF lenses (..half kidding)
07-16-2016, 07:59 AM   #19
Pentaxian




Join Date: Jan 2011
Location: New York
Posts: 3,206
I hope the lenses have less flare than shown in that advertisement

07-16-2016, 08:01 AM   #20
Veteran Member
Tan68's Avatar

Join Date: Sep 2014
Photos: Albums
Posts: 396
QuoteOriginally posted by DeadJohn Quote
I hope the lenses have less flare than shown in that advertisement
really, not bad for light source in image. i would hope for better defined light ray arms shoosting from the light source.
07-16-2016, 08:43 AM   #21
Loyal Site Supporter




Join Date: Apr 2010
Location: Tennessee
Posts: 5,677
Samyang doesn't have very good quality control and that is very important for an AF lens if you consistent accuracy with a PDAF DSLR. That said, the 135mm F/2 that they make is an excellent lens. Every bit as good as the Canon 135L (optically) if not a little better. AF is pretty old technology at this point. IF they can get the quality control improved, they can make very good lenses.
07-16-2016, 09:50 AM   #22
Site Supporter
Biro's Avatar

Join Date: Jan 2009
Posts: 1,177
QuoteOriginally posted by Winder Quote
Samyang doesn't have very good quality control and that is very important for an AF lens if you consistent accuracy with a PDAF DSLR. That said, the 135mm F/2 that they make is an excellent lens. Every bit as good as the Canon 135L (optically) if not a little better. AF is pretty old technology at this point. IF they can get the quality control improved, they can make very good lenses.
I agree completely. Quality control will be key to Samyang's success going forward with autofocus. But it's been a bit uneven to date. It would be nice to have another AF choice in K-mount - and Samyang does make lenses for Pentax cameras. Still, I'm not holding my breath.
07-16-2016, 11:29 AM   #23
Site Supporter
Zygonyx's Avatar

Join Date: Jun 2011
Location: Ile de France
Posts: 3,020
QuoteOriginally posted by Mistral75 Quote
I'm afraid Focus Numérique haven't leaked anything. This is another lens, which was announced by Samyang back in May, together with their AF 14 mm f/2,8 FE, and officially launched on the Korean market (to begin with) on June 8th:
Leak of the picture to the least.
Will that lens be part of the 5 we speak about here, depends if "release" is taken in a different sense than "announce",which should be the case with regular english vocabulary.

---------- Post added 16-07-16 at 11:31 ----------

QuoteOriginally posted by RonHendriks1966 Quote
Somewhere I read that Samyang was going auto focus. Maybe these are those lenses.
Yes, very probably.

07-16-2016, 12:51 PM   #24
Pentaxian
thibs's Avatar

Join Date: Jun 2007
Location: Belgium
Photos: Albums
Posts: 5,221
QuoteOriginally posted by Mistral75 Quote
The 1977 K-mount is in the public domain since day one; Asahi Optical wanted it to become the bayonet equivalent of the widely used M42 mount.

The electric/electronic protocols (including autofocus and KAF4 aperture command) aren't.
AFAIK, the KA mount is public domain too.
07-16-2016, 01:22 PM   #25
Pentaxian
Mistral75's Avatar

Join Date: Feb 2009
Location: Paris
Posts: 2,912
QuoteOriginally posted by Zygonyx Quote
Leak of the picture to the least.
(...)
Neither:

First real world images and autofocus test with the new Samyang 50mm FE lens! - sonyalpharumors

(May 4th, 2016)

QuoteOriginally posted by Zygonyx Quote
(...)
Will that lens be part of the 5 we speak about here, depends if "release" is taken in a different sense than "announce",which should be the case with regular english vocabulary.

(...)
The Samyang AF 50mm f/1.4 FE was announced in May and released in June; I don't see how it could be part of the 5 lenses to be released ('announced' would be a better translation according to the Korean text 를 선보일 예정 = "will be showcased") on every Monday of the five weeks to come.

Last edited by Mistral75; 07-16-2016 at 01:32 PM.
07-16-2016, 01:47 PM   #26
Pentaxian
Transit's Avatar

Join Date: Aug 2007
Location: Whanganui NZ
Photos: Gallery | Albums
Posts: 4,010
Summer is 5 weeks away ?
Heck, l'd better get the tomatoes in then :-)
07-17-2016, 06:22 AM   #27
Site Supporter
Zygonyx's Avatar

Join Date: Jun 2011
Location: Ile de France
Posts: 3,020
QuoteOriginally posted by Mistral75 Quote
Neither:

First real world images and autofocus test with the new Samyang 50mm FE lens! - sonyalpharumors
(May 4th, 2016)

The Samyang AF 50mm f/1.4 FE was announced in May and released in June; I don't see how it could be part of the 5 lenses to be released ('announced' would be a better translation according to the Korean text 를 선보일 예정 = "will be showcased") on every Monday of the five weeks to come.
Thanks, you make place for hope again
07-17-2016, 06:51 AM   #28
Pentaxian
D1N0's Avatar

Join Date: May 2012
Location: ---
Photos: Gallery
Posts: 4,088
Original Poster
Photographyblog did a review of the lens.(Samyang 50 1.4 FE) nothing stellar.
Samyang AF 50mm f/1.4 FE Review | PhotographyBLOG
07-18-2016, 02:57 AM   #29
Pentaxian
Mistral75's Avatar

Join Date: Feb 2009
Location: Paris
Posts: 2,912
Monday 18 July: announcement of XEEN 135mm T/2.2, deriving from Samyang 135mm f/2 ED UMC, which tops up the current XEEN series of professional cine lenses (14mm T/3.1, 24mm T/1.5, 35mm T/1.5, 50mm T/1.5 and 85mm T/1.5).

Samyang Optics, Lenses for Camera ? Cine ? CCTV ? Photo, Prime Lenses & Third party Lenses

https://www.facebook.com/xeenglobal/photos/a.1619997031619261.1073741827.158...type=3&theater

07-18-2016, 03:07 AM   #30
Site Supporter
Zygonyx's Avatar

Join Date: Jun 2011
Location: Ile de France
Posts: 3,020
That's hollywoodian's potential blockbuster, not pentaxian's
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
50mm, af, f/1.4, fe, focus, lens, lenses, pentax news, pentax rumors, rokinon, samyang, sony
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need advice: BIG Trip this summer. pentax_sam Pentax SLR Lens Discussion 39 12-21-2013 09:58 PM
Summer is upon us... Whats your go to summer kit this year? wanderography General Talk 2 06-10-2012 09:15 PM
Rumor mill: FF Nikon D600 this summer writeb Photographic Industry and Professionals 2 04-26-2012 10:10 PM
Going to Disney World this summer VF-19 Photographic Technique 13 04-20-2011 03:34 PM
Boston this summer ChrisPlatt Travel, Events, and Groups 8 08-09-2009 04:22 PM



All times are GMT -7. The time now is 09:32 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top