Originally posted by Praestigium @Yeatzee: I plan a mixture of insects and flowers, and I already have a tripod but I've never found much opportunity to use it.
Also, I just managed to get a reasonable price on a Panagor 90mm from one of the users here.
It's a true macro lens so the Raynox won't be of much use. I'm assuming my only real option of going beyond 1:1 with it is to pop on some extension tubes?
You are lucky to get the Pangor 90. It has a fine reputation.
A Raynox 150 may* be a superb addition to the Pangor 90; with it the maximum magnification will increase from 1:1 to 3.2:1 (adding the Raynox 150 to the Pangor 90 changes the overall focal length from 90mm to 43mm).
Yeatzee is correct that a reversed lens may* work but the Raynox is so easy to use and of such quality it would be worth the small investment. If you want to try a reversed lens on the Pangor, choose a long focal length so the magnification isn't too high for practical use.
Regarding the value of a focusing rail, you'll soon find out that hand-holding at high magnifications is extremely difficult and that a little staging of situations with insects is a big help.
Many of the superb insect macros you see are of subjects that have been frozen to immobilize them for a while -- as they recover from being chilled, they move in slow motion giving you the chance to get a good composition.
Another use for focusing rail is for focus stacking; If you try to take a series of thru-focus shots by changing the focus of the lens, the magnification also changes. If you use a focusing rail to move the whole camera set-up by small increments the magnification does not change while creating the focus stack.
I think a $50 or so investment in focusing rails is well worth the extra range of possibilities it offers.
Dave
* I hedged a bit ("may" instead of "will") because sometimes Macro lenses are so deeply recessed that vignetting is a problem & I've not used the Pangor so don't know about it in particular.
Last edited by newarts; 06-14-2010 at 06:12 AM.