Red "D" on Nikkor-W 300mm f5.6

[tgtaylor]

The seller just replied:

※I do not know meaning of "D" of the red. I'm sorry.

I'm still awaiting the reply from Nikon USA.

Thomas

[Oren Grad]

The Nikon website http://www.nikonusa.com/en/learn-and...ns-barrel.html has this to say about "D" appearing on the barrel:

On older NIKKORS you may see the letter D, and that means distance information is factored into the metering process. These days all NIKKORS have distance encoders, so you won't see D on new NIKKOR lenses—only G.

But that doesn't appear to apply to the LF lens.

It doesn't - it's about the second generation of their autofocus lenses for 35mm SLR, the so-called AF-D series.

[Old-N-Feeble]

Ot?

[tgtaylor]

I received a reply from Nikon requesting a photo of the lens which I sent. I also asked about the red "R."

Thomas

[tgtaylor]

Received an email from Nikon USA this morning telling me that they have forwarded the question the Nikkor LF lens guru's in Japan and to "stay tuned."

In other news, I received today a Pelican 1550 case to stow and transport all my 8x10 lens together in one case. I got the dividers instead on the foam which 8x10 lens, unlike 135 and 4x5 lens, quickly destroy. Geez, I can't believe that I have 8 lens for 8x10! When first got into LF I was convinced that all you need were 3 lens: 150mm, 90mm, and 300mm - and that's what I got and in that order. While I still consider 8 lens to be excessive, its better than spending your money on tobacco or drugs and I do use them all.

Thomas

[Taija71A]

Like tgtaylor i would be inclined to think that the D is probably for Demo, or a means for nikon to identify a certain lens internally within the company that might have been out on loan or test.

+1. Agreed in full.

Demonstrator or Distributor Sample?

[Bob Salomon]

Received an email from Nikon USA this morning telling me that they have forwarded the question the Nikkor LF lens guru's in Japan and to "stay tuned."

In other news, I received today a Pelican 1550 case to stow and transport all my 8x10 lens together in one case. I got the dividers instead on the foam which 8x10 lens, unlike 135 and 4x5 lens, quickly destroy. Geez, I can't believe that I have 8 lens for 8x10! When first got into LF I was convinced that all you need were 3 lens: 150mm, 90mm, and 300mm - and that's what I got and in that order. While I still consider 8 lens to be excessive, its better than spending your money on tobacco or drugs and I do use them all.

Thomas

You use both tobacco and drugs?

[Lachlan 717]

Maybe it's like on the D Claron, where the D is for "Documentation" (i.e. Macro), or perhaps some sort of Defence spec?

[tgtaylor]

Maybe it's like on the D Claron, where the D is for "Documentation" (i.e. Macro), or perhaps some sort of Defence spec?

The Nikkor-W's are not Macro lens and I don't know about any "Defence spec." I haven't shot any negatives with it yet but did have it on the MII and it's very sharp and can handle all the rise that the MII can deliver. I have yet to try it on the 810G which is capable of much greater rise.

Thomas

[tgtaylor]

Here's Nikon's reply:


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Subject
Red "D" Designation on Nikkor Lens Barrell

Response (01/05/2016 10:46 AM)
Hello Mr. Taylor,

Thank you for your patience. I received a response from Japan concerning the marking on the lens. A Red "R" referred to the use of the lens for "Reproduction" or duplication. "D" was for the same purpose. It could be used for 'Duplication'. That is all the information we have to offer on that subject.

So now you know.

Thomas