Originally posted by chucuyuco: maybe extension tubes would be an easier less expensive solution?
...or should i go with the Raynox 150 and use it with my kit 55-300?
With a Raynox adapter, you keep full lens automation on A and AF lenses. This is important if you're shooting with flash. Only 3rd-party signal-feed-thru tubes MUCH MORE EXPENSIVE than Raynox will provide such automation with your kit lens or any other AF lens you put on your camera.
For your 50/1.7, it's a different story, sort of. You didn't say whether it's M42 or K- or M- or A-type. I often use DCR-250 on my FA50/1.4 -- yeah, I must squeeze the adapter lugs a little, but it's no big deal, although a step-down ring is a little more elegant. But the Raynox snap-on is handy for many many lenses. Just remember that a Raynox or other +diopter adapter is less effective at longer focal lengths. A Raynox on your kit lens will magnify much more at 55mm than at 200mm.
If your 50/1.7 is M42 or K- or M-type, then tubes are cheap (usually <US$10) and clean (no distortion).
I love tubes and bellows. I use both, for macro and general photography. A cheap flat-field enlarger lens on bellows is crisp and sharp everywhere. But a good place to start with your 50/1.7 is a set of cheap PK-mount tubes and a 49mm-PK mount reversal ring. Most non-macro primes deliver a sharper image when reversed for close-up work. As with everything, there are trade-offs, pros and cons:
* Any extension gives cleaner results than any adapter.
* Reversed lenses lose all automation. Aperture rings are required.
* No non-reversed lens can focus closer than its focal length.
* If not reversed, shorter focal lengths work closer than longer FL's.
* Reversed, the working distance is always the lens register, ~45mm.
* More magnification means less light means longer exposures.
What this boils down to is: Tubes are cheaper, slightly cleaner, and manual. A Raynox works great on an 18-55 kit lens, is IMHO less impressive at 200mm, and lets you keep automation. (And it's very very handy!) I hope this info helps.