Can someone explain the difference between the EF75-300 and the EF75-300 USM lens? Pro's, Con's to not having the USM? Thanks in advance!

Beth To respond via email please remove the no spam after my email address.

-- Beth (furballz@worldnet.att.netnospam), May 12, 1999

Answers

A very nice explanation to your question is at http://photo.net/photo/canon/lens-motors.html

"pro's, con's to having/not having the usm lens".

The motor on the 75-300USM will be quieter, for this, you will pay about $30 more for the USM. Focusing speed, front element rotation, etc.. will be similar in both.

-- Matt Swope (vswope@voyager.net), May 12, 1999.

There's also a review of the Canon XX-300mm family on the photo.net nature forum. One thing to remember is that the 75-300 USM is a micro USM, not the really quiet ring USM. It's still quieter, and it focuses quicker (IMO, anyway; that's probably subjective). It doesn't give you full-time manual focus like the ring USM, if that's important to you. There's an opinion that it's a little soft at the 300mm end; I haven't found this to be a problem, but again, that's my subjective view. I've been really happy with this lens...

-- Scott (bliorg@yahoo.com), May 12, 1999.

Get the USM anyday. Faster and quieter AF.

-- Brian Vega (vega@micron.net), May 12, 1999.

Beth, the only difference between the two lenses you mention is the USM motor. That is it, the construction, the glass, everything else is the same. The first lens has the typical micro motor found on most lenses, while the second has the micro USM motor which is much quieter and usually quicker. IMO, if you can afford it, spend the extra $35 and get the lens with the USM, I think you'll be much happier in the long run. Good luck.

-- Bill Meyer (william_meyer@stortek.com), May 14, 1999.

Thanks to everyone for your help!! I decided to go ahead with the USM!

Beth

To reply via email please remove the no spam from my address.

-- Beth Glasmann (furballznospam@worldnet.att.net), May 15, 1999.