HI Scott and all I'm not an expert. But I think the explanation is very, very simple. The close up table has a subtitle: (Use of lenses in normal position). Now, why would yuo want to use a wide angle in normal position? It woun't enlarge much (if anything). You'll find the wide angles (28mm-40mm) in the "Use of lenses in reverse position" tables. The wide angles will enlarge more in reverse than the 50mm lenses. Best regards Jens -----Oprindelig meddelelse----- Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]På; vegne af Wieland Willker Sendt: 29. januar 2001 16:13 Til: Pentax-list-NEW Emne: Wide-angle lenses on bellows/tubes Dan Scott wrote: > From the Special Notes section of the Auto Bellows-A Slide Copier-A > manual: > 1. The wide-angle lenses up to 35mm and the 40mm f/2.8 lens are > excluded from the close-up tables. For such wide-angle lenses with short > focal lenghts and high-speed lenses are not suited for close-up work of > high magnification, unless they are used in reverse. Can somebody exlain to me why? What happens and why is the reverse mode better? Best wishes Wieland - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org.
