Lots of patents, how many are real products?
Patent Number: 20090180199
EF 35-70 f/2.8 IS
EF 28-70 f/2.8 IS
I posted this a few days ago and removed it because I didn't really understand it.
Patent Number: 20090201585
EF 600 f/4 DO
EF 70-300 f/4.5-5.6
EF 28-35 f/1.6-2.1
Patent Number: 20090284847
EF 14 f/2.8
EF 24 f/2.8
EF 300 f/4 IS
EF 400 f/2.8 IS
As always with patents, I really don't speak their language and a lot can be lost in the translation. I'll keep this posted and let you folks dissect them.
thanks [NL]
cr
26 Comments
Yes very interesting. I also agree it should start at 24mm.
Hmmm, not necessarily-
By keeping the zoom range short, its workable:
28mm / 1.6 = 17.50mm
35mm / 2.1 = 16.67mm
Other lenses, such as the 24-70 F2.8 have openings that are larger:
24mm / 2.8 = 8.57
70mm / 2.8 = 25.00
Meaning this lens, while large, will probably not be larger than the 24-70, nor need a filter thread beyond 77mm.
28-35 is lame. What good is that? I’ll keep my 35L and take a half step back.
Screw it. The 4/400 DO is a total mess (bad IQ), so I don’t set even the slightest hope in another DO…
Exactly!!