----- Original Message -----
From: "jtainter"
Subject: Continuing to Accessorize Bertha
I have been wondering whether it would be a good idea to get the A 2X-L
converter to go with my F* 600 F4. It's an expensive pup, and doesn't often
come up used. For photographing small birds, though, even 600 mm often
isn't enough.
Can anyone comment on the optical quality obtainable by combining the A
2X-L converter with a Pentax long lens?
I have this converter, and have used it on the A 600/5.6.
I'll dig out the files tomorrow or the next day and post some pictures for
you.
Just as importantly, is it feasible to focus manually at F8?
It's OK at f/11.......
Incidentally, Bertha balances nicely on the Jobu Black Widow Gimbal head.
When I extend the two large hoods, though, I have to rebalance the lens. I
repositioned the mounting plate for this.
I got my 600 sorted out on the Wimberley as well.
The lens has a really retarded placement of the tripod mount. To mount the
LX, I need to have the winder attached to counterbalance, and I need the
battery pack with batteries on the istD to balance as well.
I am thinking I should just attach weight to the cameras' tripod sockets....
William Robb
