Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-28-2015, 07:01 PM   #1
Veteran Member




Join Date: Aug 2014
Posts: 407
Rokinon 8mm fisheye coma

Hi all,
Got a new rokinon 8mm fisheye 3.5 from Amazon yesterday. I had debated between rectilinear or fisheye, and the 180 fov for milky seemed like it had potential after a little defishing. Aside from the focus scale being off, as I've read all sam/rok/bower lenses are, my copy seems to suffer from a good bit of coma until I stop it down to around 6.3, making it fairly useless for astro. Is mine just a bad copy that needs to go back to Amazon since I haven't read of this being a common issue?

03-01-2015, 09:07 AM   #2
Pentaxian




Join Date: Jan 2011
Location: New York
Posts: 4,663
LensTip is the only review site I know of that routinely evaluates coma. Here's their test Samyang 8 mm f/3.5 Aspherical IF MC Fish-eye review - Coma and astigmatism - Lenstip.com
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!
8mm, amazon, coma, copy, fisheye, k-mount, pentax lens, rokinon, rokinon 8mm fisheye, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rokinon FE8M-C 8mm F3.5 Fisheye Lens - ebay landerhoffis Pentax Price Watch 8 10-05-2013 09:47 AM
For Sale - Sold: Rokinon 8mm f2.8 fisheye for Nex $200 hps3 Sold Items 6 08-19-2013 12:28 PM
Rokinon 8mm f/3.5 HD Fisheye $215 Shipped geomez Pentax Price Watch 16 08-19-2013 03:07 AM
Rokinon 8mm Fisheye: $239 ($40 off) Adam Pentax Price Watch 7 06-08-2013 09:48 AM
For Sale - Sold: Rokinon 8mm Fisheye Rupert Sold Items 2 06-07-2013 09:34 AM



All times are GMT -7. The time now is 11:01 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