Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies. Read More.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 13 Jan 2018 (Saturday) 11:27
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Samyang 14mm f/2.8 Infinity Shift?

 
XTiGuy215
Member
158 posts
Joined Apr 2008
     
Jan 13, 2018 11:27 |  #1

Hey guys, so I have a weird occurrence with this lens. I took it out shooting one of the first nights I got it and found my infinity focus point, (between 10 feet and infinity) photos were SUPER sharp stopped down. Next day went and shot with it at a park, swapped lenses a few times, put the Samyang back on, and infinity had shifted to between the 2 and 3 foot mark.

Not sure what's going on with this lens, it seems really sharp but extremely annoying to use because I don't want to be having to find infinity for astro stuff every time I take the thing out. I didn't bump the lens, or damage it in any way, so I'm not sure why the focus would shift (we have had some temp changes here but this is really extreme). Not sure if this is normal or if I should proceed with the RMA I opened with B&H to exchange it for another one, or just give up on the thing as a whole


Camera gear stolen, currently shopping new stuff!

  
  LOG IN TO REPLY
ZoneV
Goldmember
1,642 posts
Gallery: 5 photos
Best ofs: 1
Likes: 225
Joined Dec 2010
Location: Germany
     
Jan 23, 2018 00:58 |  #2

Samyang seems to have a very bad build quality, especially on the 14mm lens.
What color has the colored ring of your lens, gold or red?

From my understanding Samyang fixes two tubes together with some screws. They are only holding on the screw friction. When this friction is not enough, you may loose the infinity setting, or / and the lens alingment. It may be that the edges are no longer as good as before now.

http://www.4photos.de/​test/Samyang-14mm-2.8-en.html (external link)


DIY-Homepage (external link) - Image Gallery (external link) - Gear List

  
  LOG IN TO REPLY
fotografnuntabrasov
Member
Avatar
40 posts
Likes: 25
Joined Apr 2016
Location: Brasov
     
Jan 25, 2018 09:52 |  #3

I had one Samyang 14 f2.8 lens a yaer ago. Everything was blurry and the focus ring was not so good, infinity focus was miss alligned.


Fotograf nunta Brasov (external link) | Albume digitale (external link)
Canon 6D | Canon EF 35 f1.4 L II | Canon 24-70 f2.8 L II | Canon 70-200 f2.8 L II IS | Canon 16-35 f4 L IS

  
  LOG IN TO REPLY
DesolateMirror
Senior Member
Avatar
302 posts
Gallery: 62 photos
Likes: 160
Joined Oct 2015
     
Jan 27, 2018 07:42 |  #4

Heat can effect where the infinity focus mark will be, but the samyang 14mm lens, although it is a great cheap lens isn't perfect and does have some issues, one of them being the infinity focus mark not being calibrated close to infinity focus at all. A lot of people will focus to infinity in good light on a far away object and mark the spot with some tape, but again large temperature changes can alter where the mark should be.

Another common issue is decentering, where one of the lenses is knocked off center and will create an out of focus area, usually on one side or one of the corners.




  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

1,449 views & 0 likes for this thread
Samyang 14mm f/2.8 Infinity Shift?
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.0forum software
version 2.0 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is Summers
597 guests, 262 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.