Nikon 600mm PF 6.3 lens, foot mount (mount base) coming loose

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mathjak107 said:
the pitch is different in the JIS screws which are the japanese industry standard heads .

the screw head is a cross slot and not tapered like a philips head .

a philips appears to fit but does not seat all the way down .

so when you torque it you are not deep enough and risk damaging the cross slits

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I am still trying to find small JIS bits for a small torque driver.

I ordered some from vessel (brand recommended in the link) but they ended up being PH and not JIS.

I can find Vessel JIS + #0 and other small screw driver sets but not separate bits for a torque driver.

@JAJohnson @zemlin @maxxus46 and anyone else know where I can buy JIS bits for this driver that does go low enough for the recommended torque 0.18 N-m. https://www.amazon.com/dp/B0CRYBSWDS?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

The Wheeler driver I could find has PH bits not JIS bits.
 
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zemlin said:
1/4" drive bits - JIS 00, 0, 1 I'm not certain that these are JIS, but they fit the screws well.

This is the torque driver I use in my lens cap assembly - not cheap, but it's great. https://www.amazon.com/gp/product/B003KN3G96
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Thank you I saw those on amazon but was not stated as JIS and I am returning another vessel set rom amazon that did not say they were and were not when they got here so when I got the lead from @soundbyte yesterday on McMaster-carr I ordered bits and driver (not torque) from them and the payment has processed and they have been shipped ... so hope they work.

I put the torque driver in my wish list in cast the one on the way does not work out. I will not use it nearly as often as you do so hope the less expensive one works.
 
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Ken Miracle said:
Thank you I saw those on amazon but was not stated as JIS and I am returning another vessel set rom amazon that did not say they were and were not when they got here so when I got the lead from @soundbyte yesterday on McMaster-carr I ordered bits and driver (not torque) from them and the payment has processed and they have been shipped ... so hope they work.

I put the torque driver in my wish list in cast the one on the way does not work out. I will not use it nearly as often as you do so hope the less expensive one works.
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How are you determining whether a bit is Phillips or JIS? The differences seem quite subtle, especially at this small size.
 
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zemlin said:
How are you determining whether a bit is Phillips or JIS? The differences seem quite subtle, especially at this small size.
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i saw instructions on the web that said make sure you use a jis and not philips .

it also makes sense since jis is a japanese standard thread and nikon is a japanese company .

plus i tried a philips first and i could feel it not seating the same as when i got the jis driver
 
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Wow
 

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If you go to Nikon's refurbished web page, there's no such deal. However if you search with Google for a specific link to a refurbished sale of the z600 mm, you do find a link and if you go to that link it says out of stock. I think it's got to be a mistake. Typically refurbished lenses are not offered roughly 25% off and then an additional sale of 10% off that. So I think somebody messed up. At least that's what I deduce. In any event unless somebody was able to buy it at that it's now saying out of stock.
However...would have been a great deal!
 
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marvf said:
If you go to Nikon's refurbished web page, there's no such deal. However if you search with Google for a specific link to a refurbished sale of the z600 mm, you do find a link and if you go to that link it says out of stock. I think it's got to be a mistake. Typically refurbished lenses are not offered roughly 25% off and then an additional sale of 10% off that. So I think somebody messed up. At least that's what I deduce. In any event unless somebody was able to buy it at that it's now saying out of stock.
However...would have been a great deal!
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They sold out very quickly. At least one of our members got one. It was a valid deal.
 
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marvf said:
Amazing. Wonder what prompted that?
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Nikon has a pretty regular cycle of refurbished sales. If you are on Nikon's e mail list you get first crack unless you just check by accident early that morning. There can be some very good deals. Sometimes it is only one copy of a product that is available. I got very lucky a few years ago on a 600 f/4E and got it for the sale price plus an extra 10% off. I had it for 2 years and sold it to MPB for $700 less than I paid for it ... so a cheap rental.
 
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To me it seems like this is a very bizarre move on Nikon's part. Why would they offer a recent lens that still remains in strong demand, for $1,500 less than its retail price when it almost every other case refurbished lenses are offered for a much smaller discounts? I'm going to guess that perhaps this heralds or foretells a fairly substantial discount on the retail level coming up. I hope it happens in the next couple of weeks because I'm still within the 30-day window for a return to B&H of the lens I purchased at $500 off full retail.
 
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Ken Miracle said:
Nikon has a pretty regular cycle of refurbished sales. If you are on Nikon's e mail list you get first crack unless you just check by accident early that morning. There can be some very good deals. Sometimes it is only one copy of a product that is available. I got very lucky a few years ago on a 600 f/4E and got it for the sale price plus an extra 10% off. I had it for 2 years and sold it to MPB for $700 less than I paid for it ... so a cheap rental.
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I check Nikon USA's refurbished site daily while having morning coffee. I saw the 600 PF and the 180-600 pricing but I'm not in the market for either. You never know what you might find, though. I bought a refurb underwater point and shoot earlier in the year that I used while snorkeling in July/August. Sold it to mpb for nearly the purchase price.

On the topic of this thread, I've not had the foot mount screws loosen on my 600 PF, although I'm now aware that it might happen at some point.
 
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Ken Miracle said:
I am still trying to find small JIS bits for a small torque driver.

I ordered some from vessel (brand recommended in the link) but they ended up being PH and not JIS.

I can find Vessel JIS + #0 and other small screw driver sets but not separate bits for a torque driver.

@JAJohnson @zemlin @maxxus46 and anyone else know where I can buy JIS bits for this driver that does go low enough for the recommended torque 0.18 N-m. https://www.amazon.com/dp/B0CRYBSWDS?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

The Wheeler driver I could find has PH bits not JIS bits.
Click to expand...
I bought some 4mm JIS bits from iFixit. They have 4 JIS sizes among many others. Sent from Germany. It is a metric size so may only work with torque drivers that takes a 4mm bit.
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