A 1.36x magnifies the image produced by a 1.18x magnifier by 1.15x so it's magnifying the image by almost the same amount again that the 1.18x magnifier did to the orignal image. So that sounds quite a big improvement.

The Tenba and KPS also include a rubber eyecup to cut out external light (very good in the case of the KPS which is why I'm going to buy another one).

The KPS looks down slightly into the viewfinder which helps seeing the green LCD display.

One slight pain with the KPS is that you need a Phillips screwdriver to remove it, but I suppose that's better than it falling off especially if you do like I did and push the tripod over

John, why would you want the A* 300mm when you already have the DA* 300mm?

Wow! The seller really slipped up there Looking at the other auctions they were all 10 days and put on around 18:00hrs yesterday. That lens was snapped up within an hour or two of it going on ebay

He must have got the price of a 300mm M42 by mistake. All his other stuff seems about right. He didn't seem to realize that is was an A* either. Really well made lens and very short for a 300mm plus a narrower field of view than the F* 300mm.

Nice shot Bob. Is that at f/1.7? I really like the way only one eye is in focus, reminds me of how they used to do portraits with large format cameras and slow film.

I don't think the face is blown out, you always get highlights in B&W anyway and having the face darker would achieve nothing. The brightest area is at the side of the nose, but no detail has been lost. Digital doesn't record highlights very well anyway.

I must say I find this green highlighting of replies very annoying
The OP asked for comments on a high magnification eyepiece and highlighted one which has the lowest magnification just because it's cheaper indicating that all the other posts are a waste of time

Looks good, I'll keep my eyes open in the UK for one. I very much doubt it being daylight balanced at least not the UK version. In some parts of the world normal room lights are daylight balanced though.

1st Class shot. The lightings perfect and the OOF on the right shoulder adds to the photograph.

It's not really detracting on this shot, but there's a halo around the hands and right shoulder... could be a problem with other shots. Do you know what caused it? Is it just a Jpeg artifact?

I would say about £450. One went cheap last week on ebay £340.
I've got one, good lens as long as 4m min. focus isn't a problem. Extension tubes can easily reduce that.
They seem to be a bit longer than 300mm AP
tested one and it measured 315mm.

Photozone claim the Nikon lens is sharp, but of very poor
build quality. So comparing sharpness isn't everything.

I've never noticed any darkening. Certainly makes manual focussing a lot easier.

Mine actually saved my camera. The only time I've ever knocked the tripod over and it was on hard granite flogs the rubber eyecup hit the flags first and took most of the impact and saved the LCD screen. Some slight secondary scuffing on one side of the camera, but still works OK