Archived posting to the Leica Users Group, 2007/09/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Philippe, If you have access to a bellows system then that and a 105 to 200mm enlarging lens will get it for you if you can get more than 200mm of extension. The 200mm macro lens will work assuming is will go to 1:1. Then add another 200mm of extension to get to 2:1 magnification ratio. Lighting by TTL flash will make your life much easier as it will prevent a lot of vibration induced loss of sharpness. Try to use a ring light and if you need to have something other than a 1:1 light ratio then use some ND film like a lot of Rosco gels(theatrical supply houses) on one side of the ring. If you have access to one then a focusing stage to fine tune focus once you have the magnification ration set will help immensely. Try to avoid an aperture smaller than F8 as diffraction effects at the magnification you will be using will kill the ability to enlarge to the size you desire. Summary: Really steady tripod and an immense head so that there is no camera movement. Ideally a camera stand from a studio originally using 4X5 cameras Focusing stage to fine tune focus. At least a 100mm macro lens, preferably 200mm so there is room to light. Enough extension to get over 2:1 magnification ratio. TTL lights or a good ringlight. Might need some polarizing film if your subject is glossy to kill reflections. 90 degree finder so you can see your subject with comfort Learn how to lock your mirror up and wait a couple of seconds. Cable release or other remote; at the least the selftimer. As an alternative to all the massive supports use the shutter at max synch speed so that no ambient light exposes your sensor or film. You will still need a tripod, focusing stage, and angle finder to get the subject in perfect focus as your DOF will be nil. If you are using non-Leica equipment both Canon and Nikon make very good multiple flash TTL systems that make the exposure very easy; all you need is the proper understanding of how you want to light the object. Just use normal flash exposure compensation to keep your subject the proper density as the TTL system will make your subject 18% gray. On 9/16/07, Philippe Orlent <philippe.orlent@pandora.be> wrote: > > Does anybody have experience with extreme close-up work? > > I looking for a practical solution to shoot (non detachable) 0,2 by > 0,2 inch surfaces in such a way that they can be blown up to 40 by 40 > inch prints. > Meaning shot out of hand or on a simple tripot setting. > I guess that would include some kind of a flash system. > > What kind of lens? Would a 200mm macro lens be sufficient? > What kind of flash system (ring or similar?) > > I have no experience with macro, nor with this kind of flashes, so > I'm a bit ignorant about this. > > Thanks in advance, > Philippe > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- Don don.dory@gmail.com