obakesan Posted December 17, 2007 Share Posted December 17, 2007 Hi I've bought a 2nd hand 2553 tank and 2509N reel on eBay for processing my 4x5sheets. I've built a little roller bed to lay the drum on, and I'm rotating byhand. So far things have been good (although as I'd read 10 minutes of rollingby hand gets "old mighty quick"). I've done one batch so far (4 sheets of ADOX)and they are very nice (and *no* scratches from tray development either :-) My question though is what are these little black flaps I hear people talkingabout. I did not get these with my setup. I can see that rapid rolling mighteasily dislodge the sheets, so I've been rotating at about 50rpm (give or take ;-) do I need these things? can I buy them seperately? do they have a part number? thanks folks Link to comment Share on other sites More sharing options...
ronald_moravec1 Posted December 17, 2007 Share Posted December 17, 2007 They are half inch wide and span between the reel flanges. One on each side. They serve to mix the liquid and to hold the film in place. The little round bumps where the film exits are the anchor points. they come with the reel. Link to comment Share on other sites More sharing options...
georges_giralt Posted December 17, 2007 Share Posted December 17, 2007 Hi Chris ! I own plain 2509 and improved 2509N reels, from the same source than yours. I process my 4x5 film in a 2521 tank, used by inversion as one will do with 135 film tank. So it use a lot of chemistry (about 1.450 l) but with HC110 dil H or Rodinal 1+50 it's not a huge cost. With the plain 2509, I can't install the flaps as there are no lock for them. I had no problem of film getting out of the reel so I often omit them even on the more recent 2509N reels. Maybe the previous owner didn't use them and discard them ? If you're happy without them, why bother ? Link to comment Share on other sites More sharing options...
obakesan Posted December 18, 2007 Author Share Posted December 18, 2007 Georges >If you're happy without them, why bother ? mainly its because I just don't know. I have read so many people having problems with these systems I wondered if it is because there were not using the clips? I've used trays for my development since 2002 *(when I started with 4x5) and so I know little about drums. I actually only moved over to drums due to a lack of darkroom in my present apartment. :-) Link to comment Share on other sites More sharing options...
thirteenthumbs Posted December 18, 2007 Share Posted December 18, 2007 If you paid more than $30 for it you were taken. <a href=http://www.bhphotovideo.com/bnh/controller/home?shs=2509n&ci=4942&sb=ps&pn=1&sq=desc&InitialSearch=yes&O=RootPage.jsp&A=search&Q=*&bhs=t> 2509n @ B&H </a><div></div> Link to comment Share on other sites More sharing options...
obakesan Posted December 18, 2007 Author Share Posted December 18, 2007 Charles I'm in Finland new prices here are more than that figure, and in Euro to boot! (being an Australian that makes it hurt more than US$ figures) thanks for the ref :-) Link to comment Share on other sites More sharing options...
stephen_allan Posted December 18, 2007 Share Posted December 18, 2007 I seem to remember that the black holders were actually introduced to improve processing consistency when the spiral was loaded with six sheets of film (I cannot remember my source for this, but will post if I find it). With the earlier 2509 reels, Jobo recommended that only four sheets of 4x5, or 9x12 were loaded (leaving the centre slot free on each side), to prevent processing marks or streaks. The modifications producing the 2509n spirals, with the black flaps, overcame these problems. Cheers Steve Link to comment Share on other sites More sharing options...
georges_giralt Posted December 18, 2007 Share Posted December 18, 2007 Hi ! Steve, frankly, I process in either model of 2509, and six sheet at a time. I do not know if it is due to the fact that I use manual processing but I do not encounter uneven processing with either reels. But, as usual, YMMV ;-) For now, I'm practicing processing in trays 4 to 6 sheets at a time. To practice, I use outdated Efke 25 film without hardener which is said to be very fragile. Last attempt was scratch free ! So this is a great victory ! Link to comment Share on other sites More sharing options...
thirteenthumbs Posted December 19, 2007 Share Posted December 19, 2007 Yea, shipping to Finland brings it up to $75~$80. Link to comment Share on other sites More sharing options...
obakesan Posted December 20, 2007 Author Share Posted December 20, 2007 So, just to get back to my questions <UL> <LI>do I <B>need</B> these things? (one poster seems to suggest that they're not significantly important) <LI>can I buy them seperately? <LI>do they have a part number? </UL> <P> Link to comment Share on other sites More sharing options...
thirteenthumbs Posted December 20, 2007 Share Posted December 20, 2007 <a href=http://www.jobo.com/> JOBO AG </a> (your fingerwork partially done)<br> do I need these things? = If the film slips out of their slots in your reel and/or you consistently get uneven developing then<i> YES</i>.<br> can I buy them seperately? do they have a part number? = Best bet is to find a camera store close to you and ask if they can order them for you. JOBO does not list them or the tube sections on their site for the US but I did go through a local retailer and get the tube sections and other parts for the tanks and system were in their catalog. Link to comment Share on other sites More sharing options...
thirteenthumbs Posted December 20, 2007 Share Posted December 20, 2007 I do not know if the numbers are part numbers or not.<div></div> Link to comment Share on other sites More sharing options...
obakesan Posted December 20, 2007 Author Share Posted December 20, 2007 Charles your definitely a champion (now, how do I tell you in the nicest way that I can't read that number on that beautiful image you've pasted ;-) Link to comment Share on other sites More sharing options...
obakesan Posted December 20, 2007 Author Share Posted December 20, 2007 Charles looking at these images, and my spiral I think I'll just go without them. Thanks for your trouble in pasting these images, it has helped me learn about what is 'missing' and perhaps understand "if its needed" Link to comment Share on other sites More sharing options...
thirteenthumbs Posted December 20, 2007 Share Posted December 20, 2007 Yep, more proof that the FUJI FinePix isn't.<br> The numbers are irrevelant as you won't need them when asking a dealer to order them for you, but for the record:<br> 9x12-07 257<br> 4x5- 07 258<p> Which size would/do you need? Link to comment Share on other sites More sharing options...
obakesan Posted December 22, 2007 Author Share Posted December 22, 2007 Charles 4x5 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now