Nelson, First of all, we were all newbies once, so don't feel ashamed to ask any questions about your nikon equipment here. I have both of these lenses and will try to give you a few pointers without overwhelming you (hopefully) With respect to your 105 micro, it is indeed a great overall lens, with the additional ability to focus to 1:1. My first suggestion is for you to get a tripod if you intend to do any macro work. Actually, I feel that a tripod is as important as the camera, regardless of the lens used, if sharpness is something you desire. Handheld macro is really not an option due to the slow shutter speeds you will wind up using. Focusing will be relatively easy unless the light is very low. Depth of field is increased by using smaller apertures. As long as you are using a camera with TTL metering, no exposure compensation should be necessary, other than bracketing. I suggest you seek out a copy of John Shaws Closeups in Nature book to really get a better understanding of this aspect of photography. With respect to your 24mm, it will not vignette with the L37c. I have not tried a "standard" circular polarizer on this lens, but would suggest you do so before buying one. If possible, get the correct Nikon circ. pol. filter. It is oversized in diameter so as to avoid vignetting. No matter what you do, remove the L37c before mounting the polarizer, since stacking the filters may make even the Nikon or other "thin" filters vignette. BTW, I have a Hoya SMC ultra-thin circ. pol for my 80-200/2.8. If you can get one for the 24mm, it may work out for you. My last suggestion-take more pictures. You will learn more and faster by trying things out yourself, so burn some film and have some fun. Happy shooting, Jim Korczak Pocono Mountains, USA >>>>>>>>>>>>>>>>>>>>> Date: Sat, 28 Nov 1998 08:06:48 -0200 From: "Nelson Kao" <[EMAIL PROTECTED]> Subject: Advices on some lenses and filters [v04.n139/31] <snip> I expect that the 105mm will be very useful for portraits and for some macro works when I have the chance to travel through our tropical nature. Is this lens difficult to work handheld in macro mode? Do I need special exposure adjustments when in macro? Is the SB26 useful in macrophotography or do I need a special speedlight? Any trick to focus more easily despites the very low depth of field? I have some doubts, also. Do the 24mm vignette if i use together L37c and a polariser filter? Do I need to buy slim filters? If the answer is "yes", I'm afraid it will be a little difficult to find them here in Brazil. In our market I have never seen B+W filters, for example. The most common filters here are the S&K, Cokin and Hoya, the last one being imported by the local Nikon's sole representative. If these questions are too newbie for the list, please send me by email. Thank you all. nelson kao >>>>>>>>>>>>>>>>>>