#1  
Old 01-05-2020, 10:08 PM
Harpage's Avatar
Harpage (Danh)
Registered User

Harpage is offline
 
Join Date: Dec 2019
Location: Canberra
Posts: 64
Samyang 135 f/2.0 Lens

What is everyone's opinions on this lens? I've seen a few pictures of it online and they look STUNNING! My only concern would be eventually running out of targets, because a lot of the widefield targets like the Sadr Region and Cygnus Loop are only visible in the northern hemisphere, but I just love the super fast speed of f/2. It's supposedly sharp even wide open which is nice.
Reply With Quote
  #2  
Old 02-05-2020, 07:50 AM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,945
It seems a very sharp lens from some images I've seen and this review...
https://www.lenstip.com/442.4-Lens_r...esolution.html

The data supports the conclusion that it's very sharp wide open at the image centre, attaining some 95% of its maximum (f/4) resolution at f/2 with an ~ 15% loss at the full-frame corners.

Best
JA
Reply With Quote
  #3  
Old 02-05-2020, 05:17 PM
Harpage's Avatar
Harpage (Danh)
Registered User

Harpage is offline
 
Join Date: Dec 2019
Location: Canberra
Posts: 64
Thanks JA - I may be pairing this with a 1” sensor so if it’s sharp at full frame, then I’ll definitely be good at 1”.

The only issue I see is that I’ll eventually run out of widefield targets - we do have a fair share of beautiful widefield targets, but what happens when I capture all of them? Maybe someone who uses this lens could chime in as to what they shoot? Most of the threads I see online are from the northern hemisphere, where they have the Sadr and Cygnus region.
Reply With Quote
  #4  
Old 02-05-2020, 06:16 PM
Joshua Bunn's Avatar
Joshua Bunn (Joshua)
Registered User

Joshua Bunn is offline
 
Join Date: Oct 2011
Location: Albany, Western Australia
Posts: 1,459
I like my version. It's great, and I use it wide open on my 35mm chip.
Reply With Quote
  #5  
Old 04-05-2020, 11:34 AM
Harpage's Avatar
Harpage (Danh)
Registered User

Harpage is offline
 
Join Date: Dec 2019
Location: Canberra
Posts: 64
Do you guys know of any widefield targets that look nice with the 135mm f2, visible from the Southern Hemisphere?
Reply With Quote
  #6  
Old 04-05-2020, 12:26 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 17,877
Quote:
Originally Posted by Harpage View Post
Do you guys know of any widefield targets that look nice with the 135mm f2, visible from the Southern Hemisphere?
Rho Ophiuchi including the Blue Horsehead.

Eta Carina and The running Chicken nebulae.

The large and small magellanic clouds.

Horsehead, Orion Neb and Barnard's loop.

NGC6188 region.

Gum 15 nebula

Vela Supernova Remnant

Lagoon and Trifid area.

RCW114

Eagle and Omega Nebulas

Corona Australis

Wolf Nebula

Cats Paw and Lobster.

The Rosette Nebula

Plenty of others too really.

Greg.
Reply With Quote
  #7  
Old 04-05-2020, 01:50 PM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,945
Quote:
Originally Posted by gregbradley View Post
Rho Ophiuchi including the Blue Horsehead.

Eta Carina and The running Chicken nebulae.

The large and small magellanic clouds.

Horsehead, Orion Neb and Barnard's loop.

NGC6188 region.

Gum 15 nebula

Vela Supernova Remnant

Lagoon and Trifid area.

RCW114

Eagle and Omega Nebulas

Corona Australis

Wolf Nebula

Cats Paw and Lobster.

The Rosette Nebula

Plenty of others too really.

Greg.
I'll get right on it !

Best
JA
Reply With Quote
  #8  
Old 04-05-2020, 07:01 PM
Harpage's Avatar
Harpage (Danh)
Registered User

Harpage is offline
 
Join Date: Dec 2019
Location: Canberra
Posts: 64
Thanks Greg, this gives me hope!
Reply With Quote
  #9  
Old 07-05-2020, 08:16 PM
Retrograde's Avatar
Retrograde (Pete)
a.k.a. @AstroscapePete

Retrograde is offline
 
Join Date: Oct 2011
Location: Sydney
Posts: 1,617
Great lens (with a couple of caveats).

Samyang/Rokinon quality control is known for being patchy. I think it might be getting better these days but buy from a vendor that will allow for easy return if you get an example that's a bit soft.

I've had some issues with halo-ing around bright stars - not CA but internal reflections between lens elements. This may be resolved or partially resolved in later revisions of the lens (I've had mine since 2017) or perhaps different camera setups are affected more or less.

Focus is critical (as with all fast optical systems) but the lens is so sharp that even a slight misfocus will have big implications for the quality of the image.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 08:00 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement
Testar
Advertisement