tgtaylor
13-Aug-2015, 10:54
Over the years I have found many forum members expressing the difficulty of loading the Jobo 2509N reel. Initially I too had the same or similar difficulty and after trial and error arrived at the following procedure for loading the reel which has proved both successful and fail-safe for me.
How to load the 2509n reel:
1. Load the film (emulsion towards the inside) from the inside of the reel outwards. The biggest difficulty when loading is that the sheet has a tendency to remain straight while the reel is curving and it slips out of its channel. You can “help” the sheet along by exerting a slight inward pressure on the sheets leading edge with your index finger while pushing the sheet in with the other hand. When the sheet is fully inserted into its slot, gently rock the sheet back and then forward and you will feel that its locked into its slot.
2. There is a sharp-pointed protrusion on either side of the reel at the 2d slot. If the 1st sheet is correctly loaded in its slot, there will be a space between the sheet and the protrusions. When the 2d sheet is correctly inserted, there will be no space between the sheet and the protrusions: Both protrusion will be up against the back side (base) of the film. Load the 3d sheet.
3. Load sheets 4, 5, and 6 in the opposite side of the reel in the same way.
4. With both sides loaded, locate the protrusion located on the inside of the reel at the entrance to the slot where the first sheet is inserted.. With the tip of the index finger on that protrusion “aim” the slot for it on the “wing” ( with the wings channel pointed inwards towards the center of the reel and “4x5” facing outwards towards you) and insert it onto the protrusion. Sometimes you'll hear an audible “snap” when you hit the target. Then “aim” the wing to its position on the opposite side. Inserted correctly the wings will slide backwards and forwarded in their respected slots similar to the film in their slots.
5. With both sides loaded and the wings in place, insert the reels center post, place in the tank and put the tanks lid on and you're ready to process.
Using the Jobo 2521 tank, you can safely and easily process up to 6 sheets of 4x5 film at a time. Larger 2500 series tanks will allow you to process using multiple 2509N reels.
Thomas
How to load the 2509n reel:
1. Load the film (emulsion towards the inside) from the inside of the reel outwards. The biggest difficulty when loading is that the sheet has a tendency to remain straight while the reel is curving and it slips out of its channel. You can “help” the sheet along by exerting a slight inward pressure on the sheets leading edge with your index finger while pushing the sheet in with the other hand. When the sheet is fully inserted into its slot, gently rock the sheet back and then forward and you will feel that its locked into its slot.
2. There is a sharp-pointed protrusion on either side of the reel at the 2d slot. If the 1st sheet is correctly loaded in its slot, there will be a space between the sheet and the protrusions. When the 2d sheet is correctly inserted, there will be no space between the sheet and the protrusions: Both protrusion will be up against the back side (base) of the film. Load the 3d sheet.
3. Load sheets 4, 5, and 6 in the opposite side of the reel in the same way.
4. With both sides loaded, locate the protrusion located on the inside of the reel at the entrance to the slot where the first sheet is inserted.. With the tip of the index finger on that protrusion “aim” the slot for it on the “wing” ( with the wings channel pointed inwards towards the center of the reel and “4x5” facing outwards towards you) and insert it onto the protrusion. Sometimes you'll hear an audible “snap” when you hit the target. Then “aim” the wing to its position on the opposite side. Inserted correctly the wings will slide backwards and forwarded in their respected slots similar to the film in their slots.
5. With both sides loaded and the wings in place, insert the reels center post, place in the tank and put the tanks lid on and you're ready to process.
Using the Jobo 2521 tank, you can safely and easily process up to 6 sheets of 4x5 film at a time. Larger 2500 series tanks will allow you to process using multiple 2509N reels.
Thomas