Monday

Journal Entry for Monday, Oct 24th

Ken & Connie's Personal Journal
E-P1070607After being away for nearly a week, I finally got around to updating my personal journal page. This can be found by clicking “Go To Ken’s Personal Journal” under the “MORE BLOG LINKS …” in the upper left corner of this page. Even though this page has little to do with photography and is more about our daily activities, it does at times have additional pictures not shown elsewhere, as well as links to my Photo Gallery blog. The picture on the left was taken at the Golden Nugget Casino atrium on a recent trip to Laughlin. Click here to check it out ... [Ken & Connie’s Personal Journal]


Mechanical vignetting

TODAY'S TIP: Solving mechanical vignetting problems.  The picture on the right shows and example of mechanical vignetting. Sometimes I end up with this effect on my pictures when using my lens hood.This can occur whenever a mechanical extension to a lens protrudes into its field of view - the image corners receive less light than they would in the absence of the extension and vignetting occurs. The can happen whenever the extension (lens hood) is too long for the lens, when there are stacked filters, or a combination  of the two.  Sometimes a single, thick filter can vignette a wideangle lens. Sometimes using the zoom feature on a lens will trigger the effect. If you have this problem, the only recommendation I can offer is to check on vignetting behavior under various conditions, e.g. with and without filters, hood, and under various zooming conditions. One would think the remedy is obvious: use proper accessories; however in my case the lens hood I use came with the purchase of the lens.  Click here to view more tips ... Today's Tips


No comments:

Post a Comment