Sulman From United States of America, joined Mar 2004, 2040 posts, RR: 30
Reply 1, posted (10 years 2 weeks 1 day 20 hours ago) and read 4106 times:
Depends what you want to use it for. If it's aviation photography, the aperture shouldn't really be dropping below F7.1-F8.0 if you're at the long end of either lens, because you loose a little sharpness.
You'll get some great quality pictures with the 100-400, but it's alot of money - ask yourself if you really need it.
It takes a big man to admit they are wrong, and I am not a big man.
It's safe to say that since I'm in the aviation photography forum, that this is what I will be using it for...
I more concerned about the speed of the lens. I usually shoot around f8 or f9. So if the 100-400 doesn't really offer me any advantage in this area over the lens that I currently own...why should I buy it?
Gmonney From Canada, joined Jan 2001, 2160 posts, RR: 18
Reply 9, posted (10 years 2 weeks 1 day 17 hours ago) and read 4052 times:
Not that this is the best route but I am considering the 70-200L IS 2.8, you and as well add a 1.4x converter for the range that I currently get with my 75-300.... I think that the 2.8 and the 70mm will be perfect for all conditions and applications, if i need something shorter, I have the 17-40L 4.0 in the case...,
I am going to add the 100-400L IS later on... in a few years....
Fly747 From Canada, joined Apr 2005, 1497 posts, RR: 8
Reply 14, posted (10 years 2 weeks 1 day 15 hours ago) and read 3978 times:
Quoting Flyfisher1976 (Reply 10): Am I going to really see an improvement in quality and performance big enough to make me feel justified in an upgrade from the 75-300 to the 100-400?
You WILL see the difference. I recently upgraded from the 75-300mm to 100-400L IS and the pictures just look much better. I also have a few shots at full focal length and there's no comparison to my old lens. I never shot at more than 200mm with the old lens because it just ruined the whole shot. You will feel justified
Paulinbna From United States of America, joined Feb 2003, 1114 posts, RR: 5
Reply 15, posted (10 years 2 weeks 1 day 11 hours ago) and read 3945 times:
One word. YES. The auto focus is a lot faster and also the picture are really a lot sharper then 75-300 MM. Although as I hear not as sharp as the 70-200 MM L with th 1.4X. It all comes down to how far away your subject is. Like in ATL you would be switching back and forth between the extender and with out.
The 100-400 lens is a must upgrade.
Canon 50D user; 100-400 MM L IS 10-22 MM, 60MM Macro
Jkw777 From , joined Dec 1969, posts, RR:
Reply 16, posted (10 years 2 weeks 1 day 10 hours ago) and read 3929 times:
I was in this situation exactly this time last year, and I made the jump for the 100-400. I was blown away with this lens! I can suggest making this move, you will not be disappointed that's for certain.
Good luck with your choice, you know it makes sense.