08-17-2010, 06:13 PM
[quote name='you2' timestamp='1282048042' post='1838']
I wonder if Canon has given up on the DO design; also curious how long they spent working on the 400 and 70-300 designs prior to release. Hum. Oh well would be nice to see something new on the optical front.
[/quote]
I think they have. These multiple fresnel type lenses are great for making a lens a lot lighter and shorter, are fine when used with film, but on digital they require an expert hand at postprocessing - digital is just too sharp to obliterate the rendering side effects of these lenses.
The 70-300 DO was always praised over here as a stealth lens: it doesn't really look as long as it is, and it is black too <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />.
Kind regards, Wim
I wonder if Canon has given up on the DO design; also curious how long they spent working on the 400 and 70-300 designs prior to release. Hum. Oh well would be nice to see something new on the optical front.
[/quote]
I think they have. These multiple fresnel type lenses are great for making a lens a lot lighter and shorter, are fine when used with film, but on digital they require an expert hand at postprocessing - digital is just too sharp to obliterate the rendering side effects of these lenses.
The 70-300 DO was always praised over here as a stealth lens: it doesn't really look as long as it is, and it is black too <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />.Kind regards, Wim
Gear: Canon EOS R with 3 primes and 2 zooms, 4 EF-R adapters, Canon EOS 5 (analog), 9 Canon EF primes, a lone Canon EF zoom, 2 extenders, 2 converters, tubes; Olympus OM-D 1 Mk II & Pen F with 12 primes, 6 zooms, and 3 Metabones EF-MFT adapters ....