View Single Post
  #4  
Old 13-09-2015, 05:01 PM
rcheshire's Avatar
rcheshire (Rowland)
Registered User

rcheshire is offline
 
Join Date: Apr 2010
Location: Geelong
Posts: 2,617
Quite right Ray. Need to slow it down or shorten the subs. Two elements plus flattner, compared to the 13 element 200mm prime lens. Lots more light.
Reply With Quote