NEW Kowa 25x-60x Wide Angle Zoom! (1 Viewer)

DRodrigues · Mar 22, 2013

Rick, in a zoom the field stop varies with magnification - see nagler zooms at http://www.televue.com/engine/TV3b_page.asp?id=214&plain=TRUE
I think I understand the effect you are seeing but is a result of other artefact then vignetting

Paul Hackett · Mar 27, 2013

In answer to some queries i have recieved, i am told that the zoom eyepiece is now in circulation with the main dealers here in the UK, we have produced a short vid to show what it looks like and what are its features

http://www.youtube.com/watch?v=EX2JWBT_Jqw

Rgds

Paul

RJM · Mar 27, 2013

Hi Paull, completely off topic but I just wanted to say the www.kowaproducts.com website is excellent. This is one of the best product info sites of any sports optics OEM that I have come across. Congratulations!

That said, I was watching the Lenscope video and was surprised to see the possibility of stacking the teleconverters (something new!) with the caveat that it only applies to Nikon cameras. Can you explain?

Paul Hackett · Mar 28, 2013

RJM said:
Hi Paull, completely off topic but I just wanted to say the www.kowaproducts.com website is excellent. This is one of the best product info sites of any sports optics OEM that I have come across. Congratulations!

That said, I was watching the Lenscope video and was surprised to see the possibility of stacking the teleconverters (something new!) with the caveat that it only applies to Nikon cameras. Can you explain?

Hi Rick

The simple answer is that the lens itself has a bayonet in which you add the adapters/converters, this is actually a Nikon bayonet fit, so you can add/stack any of the 350mm 500mm or 850mm Nikon fit adapters

But if your camera is Canon Sony etc, one end is Nikon fit into the lens, the bayonet fit into the DSLR is for Canon Sony etc.

It was discovered by an Italian Photographer who specialises in narrow DOF bird shots, he just goes for the eye of the bird in focus, quite arty pics actually, he contacted the office in Germany, i met him at a show in Germany last year, very interesting guy, alas he doesnt have a website

Rgds

Paul

Boy Wonder · Jul 11, 2013

Paul Hackett said:
Hi Rick

The simple answer is that the lens itself has a bayonet in which you add the adapters/converters, this is actually a Nikon bayonet fit, so you can add/stack any of the 350mm 500mm or 850mm Nikon fit adapters

But if your camera is Canon Sony etc, one end is Nikon fit into the lens, the bayonet fit into the DSLR is for Canon Sony etc.

It was discovered by an Italian Photographer who specialises in narrow DOF bird shots, he just goes for the eye of the bird in focus, quite arty pics actually, he contacted the office in Germany, i met him at a show in Germany last year, very interesting guy, alas he doesnt have a website

Rgds

Paul

Apologies if you get asked this a lot Paul but in your opinion and having all the kit at your disposal, would you say that this new eyepiece would make the scope give better results at distance with digiscoping than it would by using a DSLR adapter?

Paul Hackett · Jul 11, 2013

Boy Wonder said:
Apologies if you get asked this a lot Paul but in your opinion and having all the kit at your disposal, would you say that this new eyepiece would make the scope give better results at distance with digiscoping than it would by using a DSLR adapter?

It depends on your distance and the your manual focusing of course, but the same principle applies, further away less detail with anything that you use? "Better results" can be very subjective, depending on what you want to do with the pictures, ie web pictures so can crop to a degree, or you wish to print at full size,

Upto 1000mm with a dslr adapter upto 3000mm with compact camera is your options, dependant on crop factor of the dslr

Rgds

Paul

Boy Wonder · Jul 12, 2013

Paul Hackett said:
It depends on your distance and the your manual focusing of course, but the same principle applies, further away less detail with anything that you use? "Better results" can be very subjective, depending on what you want to do with the pictures, ie web pictures so can crop to a degree, or you wish to print at full size,

Upto 1000mm with a dslr adapter upto 3000mm with compact camera is your options, dependant on crop factor of the dslr

Rgds

Paul

Thank you Paul,

It would be more record shots for web usage/reports so can't see them ever going to be printed full size. The big boys with their 500's and 2x converters have that 1000mm market cornered so as much as it would be nice, tt'd be better to get something different. As I currently have a 4D I think I may have to keep saving up for an adapter and camera as well as this lens

Will they all be on show at the BirdFair with a digiscope set up too?

Paul Hackett · Jul 13, 2013

Boy Wonder said:
Thank you Paul,

It would be more record shots for web usage/reports so can't see them ever going to be printed full size. The big boys with their 500's and 2x converters have that 1000mm market cornered so as much as it would be nice, tt'd be better to get something different. As I currently have a 4D I think I may have to keep saving up for an adapter and camera as well as this lens Will they all be on show at the BirdFair with a digiscope set up too?

Yes, all Digiscoping rigs on show as usual

Boy Wonder · Jul 13, 2013

Thanks for your help and see you there.

gcole · Dec 4, 2013

FOOON said:
Direct comparison of the old 20-60x with the new 25-60x wa leave no room for doubt apparently. Birding friend compared the two today with Paul Hackett and was suitably astonished. Available for sale in UK this month pers comm. Available at 629 Euro via quick google trawl.

We already have (1) TSN -773 with the 20-60 zoom but would rather use the 25 or 30x eyepiece then these powers on the 20-60 zoom. When Kowa came out with the newer 25-60 I thought... wow at last no more fixed eyepieces for my TSN-773 but when I saw the $650 price tag reality set in until ...... OpticsPlanet had their Thanks Giving/ Black Friday deals this past week offering to returning customers a 12% discount on top of their already reduced sale prices, along with another 5% discount combined with a free $150. gift card bundled to use toward the purchase of another TSN -773 & a 25x60 zoom. Then after talking to a sales rep. about by pending order I managed to get another $30. off. A price a ScopeAlcoholic could not refuse .. :t: $1840. I now have two scopes, but I never have to screw around with another fixed eyepiece3

The Kowa TE-11WZ zoom is AMAZING !!!!!!!!!!!!!!!!!!!!!!!!!!!

kabsetz · Dec 5, 2013

I notice I had never posted the measured eye-reliefs for the TE 11 WZ, so here comes. These are measured from the eyecup rim level, so represent "effective eye-relief" rather than the distance from lens surface.

16mm at 25x, 15mm at 30x, 14mm at 40x, 15mm at 50x and 15mm at 60x.

This is more constant than for most zooms, and quite good overall. Due to the very wide field, at 60x if you wish to see the very edges of the view field, you need to "look around the corner" as it were, and the field stop is no longer a clear sharp edge, but I did not find this bothersome.

The eyepiece is very sharp even at image periphery at all magnifications, and has very low lateral color. Field of view is equal to Swaro ATX 85 at 25x, and a little wider still at all other magnifications.

Kimmo

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