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Old Saturday 8th March 2014, 07:30   #1
Hermann
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Extender for angled Leicas

Leica will be offering a 1.8 extender for the angled versions of the 65 and 85 models. It's expected to arrive in on 20 May:

http://www.orniwelt.de/products/Spek...ender-18x.html

The magnification range will be 45-90x with the 25-50x zoom eyepiece.

Looks like an interesting accessory for Leica owners who want a bit more magnification.

Hermann
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Old Saturday 8th March 2014, 14:50   #2
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Nice...
Hopefully it will work also for the straight versions. The official site http://en.leica-camera.com/sport_opt...ies/10385.html also only mentions the angled versions...
Now Leica "only" need to release >100mm versions of their spotting scopes...
Will be interesting to see reactions from other alpha producers...
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Old Saturday 8th March 2014, 15:02   #3
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Congratulations Leica - that is a very good idea! Now if Kowa would only do the same thing (at about 1.5x) for the 883 (or even better, a 100mm 993) I think my search for a birding scope would be over.
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Old Saturday 8th March 2014, 16:30   #4
Hermann
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Quote:
Originally Posted by DRodrigues View Post
Hopefully it will work also for the straight versions. The official site http://en.leica-camera.com/sport_opt...ies/10385.html also only mentions the angled versions...
Orniwelt stresses that the converter can *only* be used with the angled versions:

"Beachten Sie bitte, dass eine Verwendung des Extenders 1.8x an den Geradmodellen ist nicht möglich. Der Extender 1.8x kann dort mechanisch nicht angeriegelt werden."

Sorry about that.

Hermann
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Old Saturday 8th March 2014, 19:52   #5
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Henry,

How do you think this 25-50x Wide/extender combo would work with astro-scopes? The zoom itself has been quite popular with premium refractor owners, from what I've been able to tell.

I agree that the idea is good and even overdue. Even the price is reasonable for a Leica product.

May this prompt Swaro to make a similar extender to go between the objective and the prism/zoom module of the ATX/STX.

Kimmo
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Old Sunday 9th March 2014, 05:49   #6
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Wow, awesome! Yes, come on Kowa & Swarovski, make an extender like this too...
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Old Sunday 9th March 2014, 13:08   #7
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Originally Posted by kabsetz View Post
Henry,

How do you think this 25-50x Wide/extender combo would work with astro-scopes?

Kimmo
Kimmo,

I don't see why there should be any problem. I'm sure astro users already combine the Leica zoom with similar Barlows for higher magnification.

For spotting scopes I'd really prefer to see something like the Questar Barlow built into the prism housing where it could be quickly flipped in and out of the light path without removing the eyepiece.

Henry
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Old Monday 10th March 2014, 21:39   #8
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Just remembered that this is one more reason for Nikon new Monarch telescopes should use the traditional astro 1.25" barrel - Nikon already produces a 1.6x barlow for their 1.25" astro eps...
However I don't know if it's parfocal as this Leica is since never seen mention to this detail e.g. http://www.apm-telescopes.de/en/Opti...rter-lens.html, probably since astrotelescopes usually have big enough focus range.
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Old Friday 11th April 2014, 10:00   #9
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Quote:
Originally Posted by henry link View Post
Congratulations Leica - that is a very good idea! Now if Kowa would only do the same thing (at about 1.5x) for the 883 (or even better, a 100mm 993) I think my search for a birding scope would be over.
I had a chance to speak to a rep. from Kowa at one of my local reserves on Wednesday and was able to make the point that Kowa was falling behind in the high power magnification stakes.

Initially she was sceptical of the need to go beyond 60x but I did explain that other manufacturers were now doing it and that the scope was capable of taking higher powers and that it would be useful in some situations.

I suggested a 1.5x entender would be a good idea and by the end of the conversation she said she would ask the Kowa engineers about the possibility.

I like to think that as Kowa starts to market itself a bit more aggressively in the UK at least that they might start to respond to trends. We shall see.
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Old Friday 11th April 2014, 16:17   #10
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Anyone know why the extender does not work with straight scopes? I would like one for my Leica as well.
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Old Tuesday 15th April 2014, 15:13   #11
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It doesn't currently work with the straight models because the first internal lens in the straight scope is a hair too close to the mount for the adapter to fully seat and lock. It's close (a little too close!). I've been using a prototype over the last week and it performs exceptionally well both for viewing and digiscoping. Drew Weber of Nemesisbird.com posted a preview recently which you can find on their site, complete with some digi-video.

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Old Tuesday 22nd April 2014, 00:33   #12
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David,
I guess isn't just the distance to the lens in the straight version - it would be easily solved doing the extender a few mm longer...
In any case it's a shame that Leica didn't found a universal solution - I was a potential user of this if it worked in the straight version...
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Last edited by DRodrigues : Tuesday 22nd April 2014 at 09:26.
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Old Wednesday 13th August 2014, 17:29   #13
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The Leica 1.8x Extender now listed as "in stock" at B & H in the US:

http://www.bhphotovideo.com/c/produc...ender_for.html
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Old Wednesday 13th August 2014, 22:44   #14
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Don't want to rain on anybody's parade but Leica had one of those to demo at the Optics expo in Columbus in April. I wasn't real impressed with it above about 60X. Granted it was a gray very overcast day but there was a noticeable loss of detail at higher mags. It wasn't real bright and kind of like the Zeiss 20X75 above 55X or so. I didn't have a chance to compare on a bright ,sunny day but with the conditions we had with Kowa, Swaro,Zeiss Leica and Vortex (Nikon wasn't there officially but one dealer had samples so I discount them a little because of no factory prepped samples) all lined up to compare, The Kowa and the new Swaro were brighter and sharper at 60X and bumping the Zeiss and Leica didn't help them. Could I see a difference between the Kowa and the Swaro? no and I definitely couldn't see two thousand bucks difference. Just what I saw and I was a buyer that day.
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Old Sunday 17th August 2014, 03:06   #15
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Just noticed the reference to this (p)review above in Woodcreeper's post. Link:

http://www.nemesisbird.com/reviews/p...extender-1-8x/
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Old Sunday 21st September 2014, 02:15   #16
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Astronomers are wondering about this too...
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Old Saturday 14th November 2015, 10:38   #17
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Any user experiences / opinions?
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Old Saturday 9th January 2016, 08:56   #18
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Hi,
Any other Dis/Satifaction report from users?
Thanks in advance and best regards
Yves
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Old Thursday 28th January 2016, 19:25   #19
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Anyone know when (if ever??) the extender for straight Televid's will be available?

Steven Schoevaart
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Old Friday 29th January 2016, 23:24   #20
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No matter how good an idea this sounds, it will still be subject to the laws of physics! Surely the fixed scope aperture, transmission losses and internal reflections at an increased number of air/glass surfaces will still render the view mediocre at best above a certain magnification? Will the cost be justified by an effective and useful increase in power?
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Old Saturday 30th January 2016, 10:42   #21
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Rotherbirder,

Of your concerns, the fixed scope aperture is the significant one, transmission losses and internal reflections in this case are increased so marginally that their effect is negligible. A top-quality 88 mm scope is capable of showing increased useable resolution (more detail) up to roughly 0.9-1 mm of exit pupil diameter, or just about to the top magnification offered by a single extender. In planetary viewing, much higher magnifications are useful.

Whether the view is mediocre or excellent depends on your definitions of those terms. But, for practical perspective, in good viewing conditions the improvement in detail seen will with the Kowa 883/4 will be significant well beyond the 60x possible with the zoom alone, and from my experience with extended use of a Nikon ED 82 A capable of 75x and now the Swaro ATX 95 going up to 72x, I'd say that the point of no more return to your increased magnification with a good sample of the Kowa is somewhere in the 85-96X range, which makes it plenty useful for the money. With the Nikon I would not have been satisfied had the magnification range stopped earlier, and with the Swaro I often would need it to go higher, at least up to 85x, preferably closer to 100x. I have a booster (Zeiss 3x12) which has sometimes allowed me to ID a shorebird at about a mile distance at 115X that was simply impossible to ID at 72x without the booster. And the Zeiss booster really does have poor transmission and a whole bunch of glass to deteriorate the image, unlike the Kowa extender that has very few glass-to-air surfaces, no prisms, and much better coatings.

But not all birders use their scopes to their max, it depends on the kind of viewing you do, and if you have a Kowa and rarely use it at mags above 50X, you will have no need for the extender.

Kimmo
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Old Saturday 30th January 2016, 15:14   #22
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Thanks for the explanation Kimmo. I won't have any use for one as I use an APO62, but find the concept interesting. How does it compare with using a teleconverter with a zoom lens in photography? As I have long understood it, prime lenses have always had the edge on zooms; zoom eyepieces have improved vastly I know - even from using the 'old' 20-60(16-48)x - but I'm impressed that they can be pushed so much further. As you say, quality is very subjective anyway.

Thanks again,

RB
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