Okay hands up, I hadn’t heard of anyone attaching the Raynox that way but if it’s secure then why not.
Only advantage of using the Raynox adapter might be quick release.
Either way it’s a bit of a waste of time in my opinion as the increase in magnification is minimal.
The x4 Raynox would be a better bet although working distance becomes rather short at max mag.
There is a Raynox calculator at
http://extreme-macro.co.uk …er-techniques/#calculator![]()
Using input values of 60mm, 1, and 19 cm, the calculator suggests that the Raynox 250 will boost magnification from 1x to about 1.96x. That is a very big increase in magnification, and gets into territory where it is hard to light the subject properly and hard to focus, or even find the subject. The value of 1.96x is just an estimate. You would need to test it to find out what it really is. Racketman is in a position to do that.
Also, note that the working distance (from the front of the lens to the subject) becomes much less with the Raynox. My guess is that it will be around 50 to 60 mm, compared to around 100 mm without the Raynox.








