http://www.the-digital-picture.com/Reviews/Canon-EF-300mm-f-4.0-L-IS-USM-Lens-Review.aspxThe 300 f/4 L IS is a partially weather sealed lens. A lens mount gasket is not present, but the switches and focusing ring have moderate dust and moisture resistance. A front filter should be used for sealing purposes.
I'll post my standard warning on all of the Canon built-in lens hood lens posts - it's all great and convenient until it's dented or otherwise damaged and Canon charges you $400+ to replace the hood. I learned the hard way, twice.9VIII said:Some thoughts.
The 300f4 is bigger, but it has that sweet lens hood
mackguyver said:I'll post my standard warning on all of the Canon built-in lens hood lens posts - it's all great and convenient until it's dented or otherwise damaged and Canon charges you $400+ to replace the hood. I learned the hard way, twice.9VIII said:Some thoughts.
The 300f4 is bigger, but it has that sweet lens hood
neuroanatomist said:If you mean the 300mm f/4L, it's already been replaced…by the 300mm f/4L IS. That happened back in 1997.
The 300/4L IS is an old design, but primes aren't updated very often in today's zoom-preferring market, particularly at the 'consumer' level. I'd expect we'll see an updated 100-400L before we see an updated 300/4L IS (and we may see pigs flying over snowbanks in hell before we see an updated 100-400L!).
You might consider a used 300/4L IS, or if you are shooting sports in daytime, the 70-300L offers better IQ at 300mm, although it's f/5.6.
I'm intrigued by your comment. What do you mean by better IQ? If you shoot at both at 300mm f/5.6 then the prime has: Sharper corner detail, Less Distortion, Less CA, Less Vignette.neuroanatomist said:You might consider a used 300/4L IS, or if you are shooting sports in daytime, the 70-300L offers better IQ at 300mm, although it's f/5.6.
StudentOfLight said:I'm intrigued by your comment. What do you mean by better IQ? If you shoot at both at 300mm f/5.6 then the prime has: Sharper corner detail, Less Distortion, Less CA, Less Vignette.neuroanatomist said:You might consider a used 300/4L IS, or if you are shooting sports in daytime, the 70-300L offers better IQ at 300mm, although it's f/5.6.
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=738&Camera=453&Sample=0&FLI=4&API=0&LensComp=111&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=2
gshocked said:StudentOfLight said:I'm intrigued by your comment. What do you mean by better IQ? If you shoot at both at 300mm f/5.6 then the prime has: Sharper corner detail, Less Distortion, Less CA, Less Vignette.neuroanatomist said:You might consider a used 300/4L IS, or if you are shooting sports in daytime, the 70-300L offers better IQ at 300mm, although it's f/5.6.
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=738&Camera=453&Sample=0&FLI=4&API=0&LensComp=111&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=2
+1
I would have expected the 300mm f4L IS to have better IQ?
expatinasia said:Doesn't something funny happen when you attach this lens to a tripod (maybe monopod too)? I seem to recall reading that it does not AF when attached or something.
I might be wrong though.
Mt Spokane Photography said:expatinasia said:Doesn't something funny happen when you attach this lens to a tripod (maybe monopod too)? I seem to recall reading that it does not AF when attached or something.
I might be wrong though.
Works great on a Tripod. The older design IS is not tripod sensing, so unless you have a cheap tripod and are getting a lot of movement, the IS being turned on while the lens is on a tripod can be a problem.
mjbehnke said:Dumb question. If I buy the 2x convertor for my 300L f4 IS, it will become f8. Will a 60D center focus work or only the 5d3 and 1dx?
Thjanks in advance!
Matthew
Jim Saunders said:There are more bodies on this list than I thought, but no 60D:
http://en.wikipedia.org/wiki/Canon_Extender_EF#List_of_EOS_bodies_that_can_AF_at_f.2F8