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09/25/2013 12:27:10 AM · #51 |
Originally posted by MelonMusketeer:
Third option, a thumbtack in the center, a piece of string, and a planet smoking light saber. |
How about a screw in the center holding a piece of flat-iron with holes in it, and affix the blade of a keyhole saw at the proper radius. Add a handle and drag it around and around with downward pressure ... |
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09/25/2013 01:17:09 AM · #52 |
Originally posted by MelonMusketeer:
With a little care, a $20 hand jig saw, and a good file or rasp, you can mark at 5.75" and at 6", then carefully saw the hole on the inner line, and file it the rest of the way to the finished size line.
Another big hole option but a little sloppier is to drill a ring of holes with a small bit, compared to the diameter of the finished hole, then file the rough cutout to finished size.
Third option, a thumbtack in the center, a piece of string, and a planet smoking light saber.
If you want to go ahead and get the lens, I can help out with the $17 shipping, but must warn you that it looks like it may not be autofocus or IS. |
I find it odd that they list a shipping price, and have a 'pickup only, or buyer pays professional crating/shipping service' clause.
Oh well, even the reduced price is still outta my budget for this at the moment. Really would like that thing though.
On the up side, I did just score a 5 or 6 inch central ND gradient filter. It's yellow, but.. whatever, I'll take it, considering a 62mm version of the same set me back nearly $200, I can't imagine what retail on one this size would be. |
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09/25/2013 01:18:12 AM · #53 |
Originally posted by GeneralE:
Originally posted by MelonMusketeer:
Third option, a thumbtack in the center, a piece of string, and a planet smoking light saber. |
How about a screw in the center holding a piece of flat-iron with holes in it, and affix the blade of a keyhole saw at the proper radius. Add a handle and drag it around and around with downward pressure ... |
Or, you could do what I've been doing before I bought the bit, a circular saw and a bit of chutzpah. :) |
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09/27/2013 11:16:55 PM · #54 |
A piece of black A/C flex duct may be a good way to make a bellows. You would need to pull it apart first and get rid of the fiberglass insulation. Twenty five foot lengths of it come in boxes about 3 ft long. The outside layer is black, and the inside part with the coil in it is clear, with the fiberglass between the two. It's easy to separate to remove the insulation. You can get "duct collars", reducers, ect to match the duct to make attaching it to things easy. I think you can get it up to 24" diameter at most refrigeration supply places, and up to 12 or 14" at most building supply places. Places that do A/C work sometimes have leftover pieces that they would sell cheap.
I have a smaller B&L to experiment with, and it seems to have some kind of magic too. It's a lot easier to move around with and to use as well.
Message edited by author 2013-09-27 23:32:34. |
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11/07/2013 02:39:37 AM · #55 |
So...
Here's the new addition to the 'family'.... Schlake scored a beautiful 609mm f/3.5 large format lens... It's now living in my garage getting a UV treatment to remove the radiation damaged color centers in the lens....
    
    
--
Hey Robert - I think this thing is going to flatten the Majestic tripod... Wonder what I'll use? ;)
Message edited by author 2013-11-07 02:43:06. |
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11/07/2013 07:46:26 AM · #56 |
How much does it weigh Cory? It looks like you may need a 10 ft tripod with a power winch at the top pick it up. The "mess" is desiccant, probably for a nitrogen line, used to keep condensation out of it at altitude.
Nice lens. It's going to take both hands to focus that thing. |
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11/07/2013 10:36:40 AM · #57 |
Haven't put it on a scale yet, but it's heavy enough that moving it really does require two people. I'm guessing around 100 lbs.
And yes, an A-frame does seem a reasonable idea, we're still trying to wrap our heads about a lens that is an order of magnitude heavier than anything we've used before... |
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11/07/2013 11:41:32 AM · #58 |
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11/07/2013 11:52:30 AM · #59 |
| Have you considered mounting it to a car? :) |
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11/07/2013 12:00:17 PM · #60 |
Originally posted by aliqui:
Have you considered mounting it to a car? :) |
Yes. |
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11/07/2013 12:00:47 PM · #61 |
Just think how much fun you could have burning ants with that thing. : )
Re the triangular item that fits in the side of it, do you suppose that's a filter holder, or could it be an "aperture" plate?
A scissor lift may be a good way to deploy the system, or a 3 or 4 wheel dolly with an arm mounted on it, similar to a motor lift roll around crane. That would be something on the order of this item, but either home made, or modified somewhat to better serve the purpose. Harbor Freight, motor crane
A transmission jack mounted on a roll around table would work too, as they have about 16 inches of vertical adjustment, plus tilt in two planes built in. Harbor Freight, tranny scissor jack
Maybe I shouldn't have started you on the "lens hack" adventure with the old projector lens mounted to the Fuji S3. I can't wait to see where the adventure goes from here. |
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11/07/2013 12:38:27 PM · #62 |
Originally posted by MelonMusketeer:
Just think how much fun you could have burning ants with that thing. : )
Re the triangular item that fits in the side of it, do you suppose that's a filter holder, or could it be an "aperture" plate?
A scissor lift may be a good way to deploy the system, or a 3 or 4 wheel dolly with an arm mounted on it, similar to a motor lift roll around crane. That would be something on the order of this item, but either home made, or modified somewhat to better serve the purpose. Harbor Freight, motor crane
A transmission jack mounted on a roll around table would work too, as they have about 16 inches of vertical adjustment, plus tilt in two planes built in. Harbor Freight, tranny scissor jack
Maybe I shouldn't have started you on the "lens hack" adventure with the old projector lens mounted to the Fuji S3. I can't wait to see where the adventure goes from here. |
Hey, you're still ahead of me... You can actually carry it around.
:D
In any case, I've gotta say, this is a fun experience, if painful - both in a physical and financial sense. |
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11/07/2013 12:43:46 PM · #63 |
Originally posted by MelonMusketeer:
Just think how much fun you could have burning ants with that thing. : )
Re the triangular item that fits in the side of it, do you suppose that's a filter holder, or could it be an "aperture" plate?
A scissor lift may be a good way to deploy the system, or a 3 or 4 wheel dolly with an arm mounted on it, similar to a motor lift roll around crane. That would be something on the order of this item, but either home made, or modified somewhat to better serve the purpose. Harbor Freight, motor crane
A transmission jack mounted on a roll around table would work too, as they have about 16 inches of vertical adjustment, plus tilt in two planes built in. Harbor Freight, tranny scissor jack
Maybe I shouldn't have started you on the "lens hack" adventure with the old projector lens mounted to the Fuji S3. I can't wait to see where the adventure goes from here. |
I'm pretty positive it's an aperture plate. There are no tabs or grooves to attach a filter, so I suspect filters weren't used. Or, if they were, they were duct-taped on. |
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11/07/2013 01:04:58 PM · #64 |
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11/07/2013 01:10:20 PM · #65 |
Originally posted by Cory:
Hey Robert - I think this thing is going to flatten the Majestic tripod... Wonder what I'll use? ;) |
Lemme get back to you on that...
//www.ebay.com/itm/Meade-Super-Giant-Field-Tripod-MASSIVE-AND-HEAVY-/321165010583
Message edited by author 2013-11-07 13:25:32. |
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