Would this smaller wheel be the "same gear" or would it be higher or lower than the main focus ring? Is the position the feature or the kind of control?One thing I would like is one with which has an extra small wheel attached that connects with the focusing ring and enables one to focus with the right index finger in a Contax 1 rangefinder style. I don't know if you can picture what I mean, but imagine a small wheel at about the 11.00 o'clock position when viewed from the front, which is connected to the main focusing wheel by cogs. This would only work if it was well made and focused very smoothly. Just an idea ...
Regards,
John