Originally posted by protocold I have also got one printed but the result is always somehow "dreamy"... but I havent blackened it of course, could this be the reason?
How did you get it blackened?
Answer : Yes!
1/ You've to make the outside of the adapter black, if your adapter is translucent (easy)
2/ You've also to make the inside of the adapter black, because if you don't do that, inner reflexions kill the contrast. This is valid for each & every adapter you could have.
My method for my particular adapter is at #12
Your goal is something
matt, choose the material available (cardboard, velvet, gaffer, paint...)
There is no need to be meticulous : Just kill the glossy parts
---------- Post added 09-24-18 at 12:08 PM ----------
Originally posted by barondla Very good results with the Sigma 400. Unfortunately mine developed the dreaded front element separation. Always liked the lens.
Thanks for sharing,
barondla
Aaaargh !
Barondla, I've just checked the lens today, and mine too !!
Just a begining of haze, but it's there.
The lens was clear when I got it, so I was happy to have a keeper...Bad news, the lens is now dead
---------- Post added 09-24-18 at 12:38 PM ----------
Originally posted by reh321 Both look awfully large to me, larger than the Sigma 70-300 APO, which I take hiking with me; both look OK in blind, but I can't imagine taking either hiking.
What about a hike with several 400mm to reach the blind ?
The plastic zoom Sigma 70-300 APO is smaller & lighter of course.
But, it's not a 40cm
All the lenses show the hood deployed BTW
Some specs so far :
# TELYT 1:6.8/400 LEITZ WETZLAR LENS MADE IN GERMANY ø72 2/1 mfd 3.6m L384mm 1.830g 1970-1990
# SMC PENTAX 1:5.6/400 ASAHI OPT. CO., JAPAN mfd 8m 1.285g
# SD 400mm 1:5.6 ø72 Tokina mfd 4m 8/5 984g IF
# 400mm 1:5.6 MULTI-COATED LENS MADE IN JAPAN ø72 SIGMA TELEPHOTO [APO] mfd 4m - 830g (or 1.100g = af) ? 11/8 IF (ZEN finish sticky, cemented groups separation)
# CANON LENS FD 400mm 1:4.5 CANON LENS MADE IN JAPAN (filtres ø34) mfd 4m 1.270g - IF