This Morning's Frost

Started Feb 8, 2013 | Discussions thread
Stephen Barrett
Contributing MemberPosts: 580Gear list
Like?
Re: This Morning's Frost
In reply to ColleenT, Feb 9, 2013

Thank you for your comments, everybody.
Again, Vision, I don't think I can take any credit for being the artist.  Isn't it amazing that such intricate patterns develop?
Alcymist, Here is a link describing the 600 mm closeup lens:
http://forums.dpreview.com/forums/post/50119908
It is just the front end of an inexpensive telescope, hacksawed off, with two aluminum sheet metal "grabbers" taped on with electrical tape.   I am finding this lens very handy, as it gives a similar magnification as macro with the subject touching the lens, except that this lens focuses at a distance of approximately 2 ft when the camera is set to infinite focus.  So you avoid casting a shadow or scaring the insects away.   I think that a Canon 500D closeup lens would give similar results.
The frost image shows some vignetting with the camera at f=109 mm.  This may be because the tube that holds the lens extends in front of the lens.  With the SX30 at full optical zoom of 150.5 mm, vignetting isn't apparent.

 Stephen Barrett's gear list:Stephen Barrett's gear list
Canon PowerShot SX30 IS +3 more
Reply   Reply with quote   Complain
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow