I recognize this has been discussed before, but hope that my contribution will prove helpful by placing most of the required information on chipping Nikkors in one place, as well as reflecting the latest CPU features available.
I have done this on six lenes and will shortly add six more.
I also address auto exposure non-linearity at some length, and illustrate my findings together with an explanation of how to revert aperture control in 'A' mode to the lens, away from the camera's control dial, thus making all pre-Ai-S lenses capable of proper auto exposure metering in 'A' and 'M' modes.
I have also integrated my approach with tailored Adobe Camera RAW lens correction profiles, which I have made, to get the best out of these old lenses.
My site is strictly not for profit. However, if anyone would like me to make a lens profile (RAW or DNG non-zoom only) for lenses I do not own, I would be pleased to do so, though that means trusting me with your lens for a day or two and paying return shipping. The only camera I use which takes Nikkors is a D700, but I would expect my profiles will work fine with other bodies in Lightroom or Photoshop.
Sat 19-May-12 07:58 AM | edited Sat 19-May-12 08:10 AM by William Rounds
Thank your for the very helpful information. I bought 3 of the EPROM units from the Spanish vendor. The size of the Spanish connection units is bigger than the ones you mention, which I assume came from the Asian connection, more around 0.11" than 0.08". And of course I didn't measure the barrel shrouds on my Ai-S lenses before ordering, which I should have. It turns out that the 20mm f/2.8 Ai-S will probably be doable without touching the barrel shroud, as will the 55mm f/3.5 Micro, but the 105mm f/2.5 Ai-S has a very large barrel shroud diameter and cannot be chipped without turning it down. I don't know how to do that and will probably not go to the trouble.
Is there any chance that you made lens profiles for either the 20mm f/2.8 Ai-S or the 55mm f/3.5 Micro Ai-S? Since I live in France it's not worth the trouble to send them to you.
I came back to edit, since I just realized that the 55 mm Micro is not an Ai-S lens. Guess I'll have to go back to the drawing board to see if chipping it offers the advantages I was expecting.
I have both the 105 f2.5 AI, the older version, and the 55mm Micro AI. I concur that both will need modification. I may shell out for the 105 at some point as this is a great portrait lens, but probably not the 55.
I think you can contact the OP on his website, though I have not tried to. Hope you find what you need.
Sun 20-May-12 07:47 AM | edited Sun 20-May-12 11:38 AM by William Rounds
Hooray! I successfully chipped and programmed my Micro-Nikkor 55m f/3.5 Ai with a Dandelion chip from Leitax in Spain. The barrel baffle shroud did not need any alteration so I just epoxied the CPU in place and then programmed it with my D700. I guess I'll have to take some pictures with it now.
Thu 24-May-12 05:51 PM | edited Thu 24-May-12 05:54 PM by William Rounds
First I chipped my 55mm Micro-Nikkor and then I chipped my 20mm f:2.8 AiS. Since the 55mm was already chipped, I used it to take a photo of the gizmo sent to me by Leitax to align and place the CPU. Basically (after making sure that everything measured correctly) I just mixed up a minuscule amount of epoxy and placed the CPU in place, putting a rubber band around gizmo to hold it in place and letting it set for 24 hours.
>I assume you probably can't or else people wouldn't be taking >the huge hit on the price of ZF.1 lenses, but I will ask the >question anyway. > >Does anyone make a chip that can be glued onto the Zeiss ZF.1 >lenses and effectively make them a ZF.2? > >Bill
I tried to chip my 400mm f/5.6 and when I mounted it onto my D700 the chip ripped off the area I mounted it onto. The Dandelion is just too thick for that lens. However, I chipped my 35mm f/2 AIS lens. It's nice to be able to use all the functions of the camera. I haven't chipped any other lenses.
Sun 03-Jun-12 03:00 PM | edited Sun 03-Jun-12 06:00 PM by William Rounds
I bought a 500mm Reflex-Nikkor on ebay and with the last of the three Dandelion chips I bought I chipped the mirror lens. I tried it out for the first time this morning and I can tell that this lens will be a challenge.
I only tried two or three hand-held shots with my D700. They are all, of course, f/8 and I set the shutter speed to 1/2000th and auto ISO. This one turned out to have an ISO of 1100. The floating donuts don't seem to bother me as much as I thought they might. I may even learn to like them.
Sun 17-Jun-12 10:38 AM | edited Sun 17-Jun-12 10:46 AM by William Rounds
There is one thing which I guess is some sort of programming bug, but I don't know how to fix it. When I set my camera to "focus" (as opposed to "release" or "release and focus"), it does not work with the chipped lens. There is an AF/non-AF program setting for the chip, but whatever I try the camera fires even when completely out of focus. It would be optimal on the 500mm reflex-Nikkor to be able to use the "focus only" setting. Anybody out there with some suggestions?
With some help from Mr. Pindelski himself I fixed the problem. I can now hold the lens on the subject and rotate the lens barrel with shutter button down, and when it's in focus it fires automatically. Takes some of the difficulty out of using this lens.
>With some help from Mr. Pindelski himself I fixed the >problem. I can now hold the lens on the subject and rotate >the lens barrel with shutter button down, and when it's in >focus it fires automatically. Takes some of the difficulty >out of using this lens.
The problem I had was in programming the chip to have it know that it is a manual focus lens, or not, in other words an AF lens. I assumed incorrectly that I should program it to manual focus, but when you do that the focus lock on the camera does not function. So, I had to go back and reprogram the chip to AF. With that done the focus lock on the camera does not allow you to fire until it is in focus, which is a good idea for most instances with this lens.
>I recognize this has been discussed before, but hope that my >contribution will prove helpful by placing most of the >required information on chipping Nikkors in one place, as well >as reflecting the latest CPU features available. > >I have done this on six lenes and will shortly add six more. > >I also address auto exposure non-linearity at some length, and >illustrate my findings together with an explanation of how to >revert aperture control in 'A' mode to the lens, away from the >camera's control dial, thus making all pre-Ai-S lenses capable >of proper auto exposure metering in 'A' and 'M' modes. > >I have also integrated my approach with tailored Adobe Camera >RAW lens correction profiles, which I have made, to get the >best out of these old lenses. > >Part I: > >http://www.pindelski.org/Photography/2012/03/08/adding-a-cpu-to-mf-nikkor-lenses-part-i/ > >Part II: > >http://pindelski.org/Photography/2012/03/17/adding-a-cpu-to-mf-nikkor-lenses-part-ii/ > >Lens correction profiles: > >http://pindelski.org/Photography/download-lens-profiles/ > >My site is strictly not for profit. However, if anyone would >like me to make a lens profile (RAW or DNG non-zoom only) for >lenses I do not own, I would be pleased to do so, though that >means trusting me with your lens for a day or two and paying >return shipping. The only camera I use which takes Nikkors is >a D700, but I would expect my profiles will work fine with >other bodies in Lightroom or Photoshop.
Nice to know that Canons aren't the only ones that can be chipped! Thx
I just bought one of these chips from an eBay seller called Tagotech. He also includes reference to Mr. Pindelski's instructions. I bought it in the hope that I could use it on my Nikon 400mm f/5.6. I was told by someone that has the same lens that I would have to remove part of the baffle in order for it to work. I also saw that another person here has said that he couldn't attach the chip to his 400mm. I think I am going to see if I can contact Mr. Pindelski and get his opinion.
In the meantime I have a couple of less expensive AI-S lenses that I can try.
Update: I just clicked on Mr. Pindelski's profile and he has removed his profile info. I wonder why.
Graham From St. Augustine, FL. "I like photographers, you don't ask questions." Ronald Reagan to White House Press Photogs
I received the chip a week or so ago and couldn't attach it properly. Mr. Pindelski explained to me that I would have to do some filing away of part of the baffle and maybe even use a Dremel saw blade. I'm afraid I did not want to risk damaging the lens, and so I just have the part sitting here doing nothing.
Graham From St. Augustine, FL. "I like photographers, you don't ask questions." Ronald Reagan to White House Press Photogs
I just purchased a CPU chip from E-Bay vendor Tagotech, and I had a couple of questions:
If I have successfully installed the chip at the right spot on the lens and temporarily attached it with double-sided tape, should it not show up in the EXIF file as a 45 mm f/2.8? (default programming on chip)
Should I be able to program the chip with a D200? Mr. Pindelski's write-up on this did not specifically mention the D200 body. I have run through the sequence described to enable programming, but I have had no luck getting the D200 to enter programming mode.I tried both 5 seconds and six seconds for the second shot in the sequence.
My "plan" is to install this on my Vivitar 90-180 f/4.5 flat-field macro lens. The lens is non-AI, but it mounts on the D200 without any problems. Metering is currently done by trial and error, chimping between shots, and adjusting with the histogram.
Any thoughts appreciated.
"It is not death that a man should fear, but he should fear never beginning to live."
Having bought some of these Dandelion chips from the russian maker, as well as from our Leitax spanish neighbor, I had success in installing them on a 24mm/2-AIS, a 28mm/2-AIS, a 180mm/3,4-Leica-R-Apo Telyt, and a Leica R 35mm/2,8-Elmarit. I could do the rather awkward programming steps with my D700. But I have noticed that the programming steps do not start with D600 and D800E. Does that mean that Nikon has changed specs on recent bodies, to inactivate the possibility ? Or more simply is there a different process to follow with D800 or Df ?
If you still have the contact information for Leitax, I'm pretty sure (David?) will be able to give you up-to-date and pertinent information. You're not far from Rambouillet, we should get together sometime and talk photography.
Thu 21-Aug-14 06:47 AM | edited Thu 21-Aug-14 06:49 AM by pistnbroke
This post dates from 2012. The current situation (2014) with these chips has changed since nikon started using firmware that rejects anything 3 rd party. I have had no success programming these chips with a D7100 or D800 and they are frozen and scrap. I previously had no problem programming with a D90 but in any case you cannot programme them unless the camera has the top screen as this is where the data apears.This is not pointed out in adverts.
I can't speak to the issues you are having with your chips, but my 80-200mm f/4 AI-S "chipped" at Legacy2Digital works just fine with my D800, and the detailed programming instructions for the "Dandelion" chips pretty clearly indicate that you need an SLR (digital or film) with a screen.
"There is no real magic in photography, just the sloppy intersection of physics and art." — Kirk Tuck
I realize that the last update to this thread is about a year ago so I wanted to share my recent experiences with chipping my lenses.
I bought three Dandelion chips from the vendor in Singapore. The package arrived the other day after about 6 weeks. I guess that the US Customs Service held onto my package to see if anything crawled out of it. In any case, I used double-stick tape and attached two of the three chips to two of my lenses then proceeded to program them only to find that I could not. I then read the latter part of Thomas' website and found the trick that I had missed: you take three photos in quick succession: 1 second, 6 seconds, then 1 second again and the aperture value starts at 2.8 and climbs. You are now in programming mode. I programmed both chips to their appropriate lens and all is fine.
On my D610: everything except for trap focus works. I've disabled using the command wheel to adjust the aperture so I can still use A and M modes as before but P and S modes now work (though with questionable exposure since I've installed these in pre-AI lenses).
On my D70: the camera thinks it's a P lens and I get metering, P, A, S, and M modes, but, again, I don't have trap focus. One thing, though, is that I had machined the aperture rings on these lenses to press the minimum aperture feeler on the D70 so the camera knows when I've selected the minimum aperture and this is the only way I'm able to take photos or else I get the dreaded 'Fee' telling me to set the aperture ring to the minimum. Also, because these are pre-AI I can't be assured that my exposure is going to be right or not.
On my F4: it's as if the chip was not there. The camera goes into A mode regardless if I have it set to P, A, or S. In M mode it's Manual. I have not tried focus trapping.
On my N8008s: the camera does not turn on unless I turn it on before installing the lens. Once installed it appears to work fine. The modes seem to work as well.
The last chip is probably going to go onto a PK-13 extension tube if I can figure out the trap focus thing. If not it might go onto a 50mm f/1.4.
I wanted to post an update on my chipped lens experience. Two out of the three Dandelion chips have lost pins (I haven't inspected the third but that one is my least used lens). I love the convenience of using the chipped lenses, especially when the camera is mounted high on a tripod and I am trying to use my front button to change the manual lenses. I guess I just need to go into the menus when the camera is on a tripod instead.
Neither Mr. White nor Mr. Sampson will do that type of work. I did find a source on Ebay. Unfortunately it would involve me shipping my lens overseas from the US. Luckily I only have a couple of lenses that would require that work.
Does anyone know if adding the CPU to most lenses preclude the ability to have a CLA performed on the lens? I don't know the correct terminology but it would seem to me removing the the silver collar with 3 screws next to the baffle could be difficult with the CPU glued on it.