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ED 50 users (1 Viewer)

When I bought the ED 50, I had the MC II zoom eyepiece which I used occasionally with the ED 82. It saves me from buying another eyepiece for the ED 50 because the DS30x always with the ED 82.

The view at 13-40x with ED50 is sufficient enough for my need in ID birds even in the dim rainforest and it is sharp up to 40x. Then I never bother to used the ED 82 in the forest except for waterbirds and open area. It saves my back!

Using ED 50 allowed me to carry camera with 80-400mm lens hahaha. So it was the best combo to have ED 82 and ED 50 for my birding tours. I sold both to purchased the EDG 85 and other lenses.
 
One thing that was interesting is that the ED82 and 30x appears to give greater than 50% extra mag. I guess this is because the reduced FOV give the impression of a greater mag?

Perry

Those two eyepieces - the 30x Wide DS (ED82) and the 20x Wide MC (ED50) share the same AFOV. I have another explanation.

The linear magnification difference is 50%. 30/20 = 1.5x.
But the areal magnification difference is (30/20)^2 = 2.25x.

//L
 
Those two eyepieces - the 30x Wide DS (ED82) and the 20x Wide MC (ED50) share the same AFOV. I have another explanation.

The linear magnification difference is 50%. 30/20 = 1.5x.
But the areal magnification difference is (30/20)^2 = 2.25x.

//L

Thanks for the explanation.

Perry
 
First trip out with the new scope was a winner - very happy with the 20x lens. Side by side with the ED82 the difference is clear, but out in the field with no direct comparison I didn't feel I was missing out much.

Biggest surprise was the weight saving with an old velbon tripod I have. I hadn't realised just how heavy my manfrotto 055/ED82 was. Looks like the ED50 will get more use than I originally expected so will end up with the the 27x as well for when I need that bit more reach.

Thanks to all for advice and comments.

Perry
 
Could someone answer this for me please:

What magnification does the MC wide eyepiece (Nikon serial number BDB90059) give on the ED50?

On the box it say 24x (60mm), 30x (78mm), 30x (82mm). I'm hoping its 20x, but suspect it is 16x, and not as advertised if so.

Thanks in advance,

Bill.
 
That eyepiece is not recommended by Nikon to use with the ED50, although I suspect it works quite good.
It would be 16x with the ED50.

//L
 
That eyepiece is not recommended by Nikon to use with the ED50, although I suspect it works quite good.
It would be 16x with the ED50.

//L

Thanks for reply. It does work, but is not the 20xw as advertised on the used ED50 I've just bought.

Bill.
 
Another vote for the MC 20x. Amazingly wide, bright sharp image. The 27x is also very good. I'm selling a straight model if you are interested squidge?

I will agree with the eyepieces on this post. The 20x will work wonders are provides enough magnification for the size of the objective lens. My preference would be angled.

All the best,
Mike
 
Do you still have the 27mc for sell?

To my knowledge it is discontinued, but I would try Mosquito Creek Outdoors in Apopka, FL or New Jersey Audubon in Cape May, NJ. Both of those dealers had a number of older, but still wonderful fixed eyepieces. If not at those two, you may still be able to find them out there somewhere.

All the best,
Mike Freiberg
Nikon Birding Market Specialist
 
Do you still have the 27mc for sell?

Your best bet is Amazon Japan. On the site, search for "nikon 27 mc" and you should see it. The DS version is also available. It may just say 40/50x on the listing but the actual eyepiece will say 27/40/50x

Then you'll have to set up an account with Tenso forwarding service to get it shipped. Current price about $149 plus Tenso's charge--maybe $25?? I forget, but it's a bargain. They airmail it. It got out here to the Pennsylvania "wilds" in one week flat. You might get it even quicker out there on the left coast.

There's a thread about all this if you search for it.

Great eyepiece by the way. It hasn't been off my ED50 once. But I wouldn't wait on this. With new Monarch Fieldscopes on the way these eyepieces may really be going, going, gone for good.

Hope this helps,
Mark
 
+1 for Amazon Japan and Tenso for forwarding to USA. Very quick and easy once you set up account. Currently you must forward .pdf copy of your passport and drivers license to qualify for export from Japan, new regulations apparently.

I recommend getting the 27/40/50 Wide MC, great on the ED50 with small tripod. They will not last very long now that the Fieldscope series is discontinued. I believe they are listed as Nikon 40/50x MC 40XWMC.

Nikon フィールドスコープ接眼レンズ 40X・50X ワイドMC 40XWMC

The early issue 27/40/50 was not the Wide angle viewing.

Note: Use Google Translate for Japanese writing descriptions.

Regards,
FK
 
That eyepiece is not recommended by Nikon to use with the ED50, although I suspect it works quite good.
It would be 16x with the ED50.

Does anyone know the reason Nikon exclude this lens from those recommended for the ED50?

Seems very odd if it fits and works okay?

Cheers
 
Infinity focus issues?..The eyepiece is shorter than the rest of the wides(less projection from the threads down)...If it was designed for 450-525mm ,maybe in the shorter focal lenght scope ,even if it does reach infinity,the override past infinity is not acceptable for their standards,and they prefer to make the disclaimer..?????? ...This is pure speculation,because I have never tried the eyepiece,maybe someone else that have used the eyepiece can confirm the ACTUAL fact (the actual fact being that I am wrong)
 
Does anyone know the reason Nikon exclude this lens from those recommended for the ED50?

Seems very odd if it fits and works okay?

Cheers

Based on my guesstimation: different eyepieces are suitable or less suitable for different f/ ratios.
For example, I had a nice 12 mm 60 degree eyepiece that worked very well with my Pentax 65 mm scope. But the William Optics SWAN 72 degrees 15 mm was pretty useless with that scope because of excessive curvature of field.
That eyepiece works very well with the slow (f/13.8?) Celestron C90.

I have the Wide DS 16x/24x/30x and it has a little more field curvature than the Wide DS or MC 27x/40x/50x. If the eyepiece you ask about has even more curvature of field, the edges would be considerably less sharp with the fast (f/5.6) ED50A compared to the slower EDIIIA (f/7) or the ED78 (f/6,7).
So the result might be a view not as stellar as with the other eyepieces, and I can understand that Nikon wants to avoid that.

//L

Edit: the link in post #52 is for the DS version which is quite nice with the ED50. I have been assuming all the time that it is the MC version you're asking about (#3 in this link: http://www.nikon.com/products/sportoptics/lineup/scopes/mc/index.htm)
 
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Based on my guesstimation: different eyepieces are suitable or less suitable for different f/ ratios.
For example, I had a nice 12 mm 60 degree eyepiece that worked very well with my Pentax 65 mm scope. But the William Optics SWAN 72 degrees 15 mm was pretty useless with that scope because of excessive curvature of field.
That eyepiece works very well with the slow (f/13.8?) Celestron C90.

I have the Wide DS 16x/24x/30x and it has a little more field curvature than the Wide DS or MC 27x/40x/50x. If the eyepiece you ask about has even more curvature of field, the edges would be considerably less sharp with the fast (f/5.6) ED50A compared to the slower EDIIIA (f/7) or the ED78 (f/6,7).
So the result might be a view not as stellar as with the other eyepieces, and I can understand that Nikon wants to avoid that.

//L

Edit: the link in post #52 is for the DS version which is quite nice with the ED50. I have been assuming all the time that it is the MC version you're asking about (#3 in this link: http://www.nikon.com/products/sportoptics/lineup/scopes/mc/index.htm)

Thanks looksharp that's very helpful. It was #3 on the link I was talking about - notable that it is the only one for which Nikon only quote two magnification values, whereas all the others have three (for 50mm, 60mm and 78/82mm objective lenses).

Aside from the eyecup design, do you assume the optical performance would differ between the DS and MC versions? From your comments I would assume you do?
 
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