. . .
-the focuser has been praised by many, but I opened a couple of EDG focus mechanisms and I was not impressed (a couple of plastic clog wheels moving in a lot of grease).
. . .
So it seems that most of Nikon’s published images showing the internal construction of the high-end EDG and HG models may be misleading:
• not only in terms of the optics;
• but also the focuser mechanism!
See the images at:
Optical Construction of HG/ LX and EDG Binoculars
The EDG and HG models are shown as using the same pattern of focus mechanism with what appears to be metal parts and without obvious lubrication.
The implication is a grease free internal focus mechanism, as is used on most other high-end offerings (though in relation to the Ultravid HD’s, Leica uses the careful qualifications of 'practically without any lubricants' and 'almost no lubrication', see post #43 at:
Wish List... )
Looking more closely at one of the HG images that I'd posted, it does show grease marks on the normally enclosed axle. So I’ve posted a lightened version to make the marks more obvious *
John
* I’d originally assumed that it was an image from Nikon, as it was in an advert along with a stock image. But that’s likely not the case as I’ve not seen the image elsewhere. The site it’s from
binoo.be no longer seems to be in operation.
In contrast, a Nikon stock image of the HGL version shows the enclosed axle as grease free (see the first link above).
And a ghost image showing more fully the focus mechanism on the HGL . . .