Ari
31-Dec-2014, 10:10
I know, I know, but hopefully this one will be helpful to others, and I do have a question at the end.
http://i1367.photobucket.com/albums/r790/Ari4000/P1030248_zps7c755380.jpg (http://s1367.photobucket.com/user/Ari4000/media/P1030248_zps7c755380.jpg.html)
I've been trying to figure out a way to get more extension out of my Toyo 810M.
The normal configuration allows for 650mm of extension, which is great for 90% of what I need; but I have a lens of 650mm FL, with a FFL of 733mm.
Needless to say, this is somewhat inconvenient when the longest lens is needed.
My front standard returned yesterday from a CLA at Toyo/MAC Group, and before putting all the little screws back on it, I inserted the rail into the bed backwards.
Here is the procedure, quickly:
http://i1367.photobucket.com/albums/r790/Ari4000/P1030245_zpsbc955b79.jpg (http://s1367.photobucket.com/user/Ari4000/media/P1030245_zpsbc955b79.jpg.html)
http://i1367.photobucket.com/albums/r790/Ari4000/P1030246_zpse91c97b0.jpg (http://s1367.photobucket.com/user/Ari4000/media/P1030246_zpse91c97b0.jpg.html)
http://i1367.photobucket.com/albums/r790/Ari4000/P1030247_zps83e8ff64.jpg (http://s1367.photobucket.com/user/Ari4000/media/P1030247_zps83e8ff64.jpg.html)
This is possible, probably even encouraged, but I didn't know about this before. Combine this with a rail extension that would make the Toyo engineers a little nervous, and, lo and behold, I now have 840mm of extension from the same camera.
I intend to modify the screws that sit in the rail so that they can be removed by hand, and possibly replace the two screws with one screw.
Removal of those screws allows the rail to extend further. The rail is still rock-solid at the maxed-out extension, with no hint of movement, wobble or vibration.
The little black bridge that needs to be removed in order to reverse the rail has to be modified for easier removal, as well. It is fixed by three tiny Philips screws.
I will next order a new, longer bellows from Rudy in HK; he has given me a great price on bellows, Toyo frames and installation.
My question is, with 840mm of camera extension, how long should the bellows be made? The bellows need to compress to 3cm (30mm); should a thinner bellows material be used?
Thank you.
http://i1367.photobucket.com/albums/r790/Ari4000/P1030248_zps7c755380.jpg (http://s1367.photobucket.com/user/Ari4000/media/P1030248_zps7c755380.jpg.html)
I've been trying to figure out a way to get more extension out of my Toyo 810M.
The normal configuration allows for 650mm of extension, which is great for 90% of what I need; but I have a lens of 650mm FL, with a FFL of 733mm.
Needless to say, this is somewhat inconvenient when the longest lens is needed.
My front standard returned yesterday from a CLA at Toyo/MAC Group, and before putting all the little screws back on it, I inserted the rail into the bed backwards.
Here is the procedure, quickly:
http://i1367.photobucket.com/albums/r790/Ari4000/P1030245_zpsbc955b79.jpg (http://s1367.photobucket.com/user/Ari4000/media/P1030245_zpsbc955b79.jpg.html)
http://i1367.photobucket.com/albums/r790/Ari4000/P1030246_zpse91c97b0.jpg (http://s1367.photobucket.com/user/Ari4000/media/P1030246_zpse91c97b0.jpg.html)
http://i1367.photobucket.com/albums/r790/Ari4000/P1030247_zps83e8ff64.jpg (http://s1367.photobucket.com/user/Ari4000/media/P1030247_zps83e8ff64.jpg.html)
This is possible, probably even encouraged, but I didn't know about this before. Combine this with a rail extension that would make the Toyo engineers a little nervous, and, lo and behold, I now have 840mm of extension from the same camera.
I intend to modify the screws that sit in the rail so that they can be removed by hand, and possibly replace the two screws with one screw.
Removal of those screws allows the rail to extend further. The rail is still rock-solid at the maxed-out extension, with no hint of movement, wobble or vibration.
The little black bridge that needs to be removed in order to reverse the rail has to be modified for easier removal, as well. It is fixed by three tiny Philips screws.
I will next order a new, longer bellows from Rudy in HK; he has given me a great price on bellows, Toyo frames and installation.
My question is, with 840mm of camera extension, how long should the bellows be made? The bellows need to compress to 3cm (30mm); should a thinner bellows material be used?
Thank you.