Some more thoughts on the 16-45 hood:

One of the things I discovered over the years was that hoods that fit over
the lens for storage, such as the hood for the 16-45, are usually poorly
optimized for best results since they are generally compromised by their
design in order to fit over the hood.  This was made clear to me some years
ago when testing hoods from Takumar lenses, many of which were designed to
slip over the lens in the same manner as the hood for the 16-45.  Even on
film cameras it was determined that a hood from a longer lens could often -
usually - be used to advantage on a shorter lens.

I just did a very Q&D test of extending the protective area of the 16-45
hood, and there appears to be plenty of room for a hood that's either
deeper or narrower, or both.  So, IMO, a better hood may be available - the
standard hood can certainly be improved upon.  Film (digital) at 11:00 <LOL>

Shel



> [Original Message]
> From: Bruce Dayton 

> Intrigued, I took my 16-45 and FA 50/1.4 outside here to test for
> flare.  It is 100 degrees and very sunny right now, so easy to get the
> sun in the image.  As I worked with the 16-45 first, I could cause it
> to flare when I put the sun just outside of the top corner of the
> frame.  If I moved the sun into the frame just slightly, it flare
> would go away.  So it seemed that there was one angle of the sun that
> would catch the glass just right that SMC coatings wouldn't help
> enough.
>
> Then I put on the FA 50 and tried the same thing.  On this lens, it
> would flare just as the sun was put into the frame, rather than just
> outside it.  It can be made to flare just about as easily as the
> 16-45, but at a different angle.
>
> The picture that Paul Stenquist showed had the sun in the frame and so
> the flare was mostly absent.  Your shot has the sun just outside the
> frame and so it really showed.
>
> Anyway, in my quickie test, it seemed that there was a single spot
> where the flare would really show, but I could make another Pentax
> lens do just about the same thing.  That is probably why I haven't
> noticed any real flare problems with mine - it didn't take much of a
> movement to fix the problem.
>
> Thoughts?



-- 
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net

Reply via email to