jazzart said:Wah...this seems to be the best bet,for the amount of Money paid.
With Telephoto, and Macro abilities.
** But please enlighten...what do you mean by not the best picture quality. Will the picture quality be very bad?
Bro,
2nd hand 50/1.8 in very good condition can be had for $120. I got mine from a nice gentleman and the glass is 3 months old with nary a scratch on the mental mount. But note, if you are going this route with a reversal ring, you are basically mounting the lens the other way round and metering is going to be unavailable, you focus by moving to and from the subject (not a big issue since most like to MF with macro).
A good macro like tamron SP90, sigma 105 is basically a good prime lens which focuses really close (ie 20cm or less). Together with a good focal length like 90, 100mm, this is gonna give you a good reproduction ratio, eg 1:1 and better up till 10:1. The Sigma 70-300 actually is not a true macro, but at 1:4 it is still ok. The pic quality is not very bad and it's usable. It depends on what are you after. Are you going to shoot a housefly and expect it to fill up the whole frame and you can count the micro hairs on its legs one by one?
Interestingly, due to CCD and lens specs, p&s digicams got excellent macro capabilities. Even a entry-level prosumer like Oly C5050 can focus down to 3cm at around 50mm (35mm equivalent). Or a F828 can do down to 2cm. Though CCD quality is not good at 100% viewing, resize it to 5R size and you have got great results. Some more for macro, you'd usually give it enough light whenever possible and if you flash you could flash closely, so using low ISOs (low noise) on p&s is not a problem. The increased DOF of a p&s compared to a dSLR cam may very work for the photog too. Of coz this doesn't apply to you, this could be an alternative for others.