> do you think using an extension tube on the SMC 100 f/4 Macro to > extend the ratio to 1:1 is a good idea? If so which do you > recommend?
This definitely works OK, Mohamed. I've done this before with an A 100/4. However, I don't know how much extension you'd need (since I wasn't trying to hit exactly 1:1, and I was using the convenient variable Helicoid Extension Tube at the time - to be honest, I was only "playing around" at the time - <g>). You'll want to use the built-in metering on your MX to judge exposures when using extension tubes (unless you like to do calculations - <g>). Fred - 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 .

