Yet another Olympus 75-300 vs Panasonic 100-300 review

Started May 13, 2012 | Discussions thread
texinwien
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Re: Which one is sharper at 300mm?
In reply to Anders W, Nov 30, 2012

Anders W wrote:

First, modern lens coatings are so good (and have been so for a while) that there isn't a whole lot of additional transmission to be gained by improving them further.

So you're saying... There's a chance?

For complex lenses like these with lots of elements, we might be talking about three or so percent loss of light due to reflection altogether. So to gain half a stop extra in this department is beyond the pale. See here for example:
http://www.canonrumors.com/tech-articles/all-about-lens-coatings/

Understood. Very interesting article - thanks for sharing it. I figured it wasn't practically possible that better glass would make a half-stop difference in this case, but it looks like it's not even a theoretical possibility. Thanks for the info!

tex

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