DPReview.com is closing April 10th - Find out more

Canon 20mm f3.5 Macro Bellow Lens

Started 4 months ago | Discussions thread
SigmaTog
OP SigmaTog Senior Member • Posts: 1,114
Re: Canon 20mm f3.5 Macro Bellow Lens

ken_in_nh wrote:

How'd you move your assembly for the stack? Step size?

Nice to see your lens and rig in action!

Thanks
The rig is getting too big & is vibrating with the slightest touch.
The steps were 19 into 1mm, ie 0.02mm.
My rig at present.
Tube length is 430mm flange to flange.
Is making the tube length 1/2 as long & using a 2x converter a useful arrangement ?
Do I place the 2x behind the lens or in front of the cameras mount please ?

Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow