Reverse and Step Down/Up Rings setup -- Help appreciated

[LizardKing]

Hello everybody!

After some reading on the subject, I've decided to try a reverse ring as an attempt to shoot macro on a budget. Kinda like the idea of the 6:1 magnification I could get with my current lenses.
The only problem I see with this, is that I'd also need to get some step down/up rings in order to mount the 28-300mm and a 50mm together. So, first of all, I'm a little concerned about the stability/security of mounting all these rings in between of the two lenses... I don't want to jeopardize the lenses.

Based on this, have 2 questions for you:

1) Which step down/up rings should I need to get to match the 77mm diameter of the 28-300 with the 58mm diameter of the 50mm lens? I've read a few articles about this but I'm still a little confused
2) Do you think the stability/security would be an issue here?

Of course I'll aim to get the best reverse ring I can find, so any suggestions or links would also be much appreaciated!

Thank you all very much in advance and have a nice day!

Regards,
Martin

 

[LizardKing]

Up?

 

[480sparky]

You simply need at adapter ring with the proper filter size for each lens.

For instance, if one lens has 58mm filter threads and the other has 67mm, you need a 58mm/67mm adapter ring.

 

[LizardKing]

You simply need at adapter ring with the proper filter size for each lens.

For instance, if one lens has 58mm filter threads and the other has 67mm, you need a 58mm/67mm adapter ring.

Forgot to thank you for your response.