I'm soon to own a Canon A590IS (takes a 52mm lens adapter), and I currently have a seldom used 18-55mm Pentax D-SLR lens (52mm filter thread).
As the A590Is only goes down to 35mm wide on the zoom range, I am thinking of getting a 0.5-0.7mm converter (pref. Raynox) to bring this down to a wide 24-28mm.
Along the way, since I don't yet have a wide angle DSLR lens, the intention is to use this on the 18-55mm for wide angle duty.
Now the A590IS takes a 52mm lens adapter and the 18-55mm takes a 52mm as well. But seems like the Raynox wide angles are all 55-58mm (specifically Raynox 6600 and 7000). I'm trwing to avoid using the Raynox 720 since it does not take filters (no thread). Are there going to be issues with me using a 52/55 or 52/58mm adapter ring to take the wide angle adapters?
Thanks in advance.