• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
Where premium quality meets exceptional value. ZEISS Conquest HDX.

Brief comparison between Zeiss 8 power binos (1 Viewer)

The Canon 10x42 IS-L has low transmission of only about 88%. Canon's in general have low transmission, and they should have higher transmission since they are a porro.
electronic device inside matters.
other electronic bino such as nikon laserforce, ieica geovid, swaro visio has lower transmission then similar rank, size bino

new 32mm IS have higer transmission because of improved coating and lens shift style IS instead of Prism shift style of others

but it shows much CA then others
 
The Swarovski NL 8x32 has 92% transmission, which is pretty good for a roof prism.
the transmission that maker quotes is bit higher then actual.
they mainly quote the measure result the highest peak of spectrum.
such as nighthunter 8x56.

It may have 96% on the green side of the spectrum and lesser yellow and red because it's make the slight green hue than NH 8x56 have

and incontrast, leica NV 10x42 might be 91% only around orange spectrum.
 
that's the main reason of why there are 'BIG 3' companies, not 'Swaro and followers'
My comment was "tongue in cheek" to be honest. I'm one that does believe there is Swaro and everyone else as far as the "alpha" optics market goes. Nobody is even close to the green machine in sales and service in that arena.
 
My comment was "tongue in cheek" to be honest. I'm one that does believe there is Swaro and everyone else as far as the "alpha" optics market goes. Nobody is even close to the green machine in sales and service in that arena.
interesting. Swaro service was not good over the last couple years - they bungled every interaction I had with them and I still don't have the parts I was trying to order - I gave up. Could never reach them on the phone, despite holding for hours, and ordering parts was impossible. FWIW. I've heard Vortex has excellent service. Looking into trying an UHD next specifically because of responsive service
 
Must be the difference between Swaro USA and overseas I guess. Vortex has no peer, or equal when it comes to customer service. My 8x32 UHD is just as impressive as my 8x42 SLC, FWIW.
 
Must be the difference between Swaro USA and overseas I guess. Vortex has no peer, or equal when it comes to customer service. My 8x32 UHD is just as impressive as my 8x42 SLC, FWIW.
"I received the Vortex UHD 8x32, and it is a nice binocular, but the Nikon MHG 8x42 has sharper edges, it was brighter in low light, has less glare, it has easier eye placement, and it was only 2 oz. heavier, so I returned the UHD and kept the MHG. IMO the UHD has quite a bit of fall off at the edges as Allbinos said. It also has some NL like glare at the bottom of the FOV at times. Furthermore, it had considerably more CA than the MHG, so it was an easy decision with the MHG being almost $500 less expensive. The FOV of the UHD at 9 degrees does not seem that much larger than the 8.3 degrees of the MHG, so I wonder if it really is 9 degrees. It doesn't seem nearly as wide as the NL 8x32. Part of it is that the edges on the MHG are sharper, so the FOV seems larger. The UHD 8x32 is a nice binocular, and you might prefer it, but my preference was for the 8x42 MHG. I returned the UHD 8x32."


"With such significant fields of view, I didn't expect them to be corrected in a perfect way. On the other hand, if the new Razors are supposed to compete with the best, they should be devoid of too many compromises. Unfortunately for the Vortex, there are a lot of compromises here. First, you can spot immediately the decrease of sharpness near the edge of the frame. In the 8x32 model it appears near 3/4 of the distance from the center, while in the 10x32 model is visible even earlier. Distortion is even more noticeable closer to the center of the image. In both models there is a noticeable coma that appears around 70-75% of the field of view radius, and at the very edge it is on the borderline between medium and high levels.

To sum up, I don't doubt that the new Razors UHD won't be a serious threat to such instruments as the Swarovski NL Pure or the Zeiss Victory SF. I can even say more: I suppose they will have serious problems to compete even with lesser models of Swarovski and Zeiss from the CL Companion, SFL, or even Conquest HD line. Still, I also hope that our disappointment connected to the 32 mm Razor UHD instruments will be soon sweetened up by small and shapely Razor HD 8x30 and 10x30 devices, moderately priced on a level of below 1000 USD."
 
Last edited:
that's the main reason of why there are 'BIG 3' companies, not 'Swaro and followers'
jackjack. Have you ever compared the top porros like the Nikon E2 8x30, Nikon SE 8x32, Swarovski Habicht 8x30 and the APM MS-8x32 IF-ED? I think the APM could be better than the other three because it uses Hoya ED glass and has absolutely no CA and has better contrast.
 
Last edited:
yes I used 10x32 10x30 10x42 10x20 18x50 canon.

12x28 16x28 14x40 Fujinon

10x32 is sharpnest. even sharpner then CHD, UV and HT. ine of the sharpest 10x32.

10x42 L is bit dark in overall optics, I lined them par with CHD, EDG

even they have electronics inside, their optics is good compared to same price normal bino.
The Canon's in general have low transmission and lack of contrast. Even the Canon 10x42 IS-L is lucky if it can muster 88% transmission. That is why many of them appear dull and lifeless, and they lack the sparkle that comes from high transmission compared to an alpha roof. As you say it could be due to the electronics inside because they should have higher transmission being a porro.


"There's a small fly in this excellent ointment, though – it's enough you glance at the transmission graph.



You can praise quite flat shape that guarantees you very good color rendering, but it is slightly worrying that at no point the binoculars reach 90% or higher. Why are we so demanding in this area? Firstly, you deal here with the Porro II system, in which the prisms operate on the principle of total internal reflection. To put it simply, there are no losses here. What's more, such a system is not divided with air, unlike some Porro I systems, so the losses can really be minimized. Add to that a 1-element objective lens and a 4-element eyepiece. Overall, in the whole binoculars you deal with just 6 optical elements, so 12 air-to-glass surfaces.


The most efficient contemporary multilayer antireflection coatings lose about 0.3% on one air-to-glass surface. With 12 such surfaces, the overall loss should amount to about 3.5%. Add to that light absorption factor in glass that, with such a number of elements, shouldn't exceed 2%. As you can see, the overall losses of light should have been about 5.5%; it means that in some parts of the visible spectrum the transmission of this instrument should be able to exceed 94%. The problem is it never exceeds 90%, and it's a slip-up that shouldn't have happened to a pair of binoculars manufactured by such a renowned producer and sold at this price point."
 
Last edited:
"I received the Vortex UHD 8x32, and it is a nice binocular, but the Nikon MHG 8x42 has sharper edges, it was brighter in low light, has less glare, it has easier eye placement, and it was only 2 oz. heavier, so I returned the UHD and kept the MHG. IMO the UHD has quite a bit of fall off at the edges as Allbinos said. It also has some NL like glare at the bottom of the FOV at times. Furthermore, it had considerably more CA than the MHG, so it was an easy decision with the MHG being almost $500 less expensive. The FOV of the UHD at 9 degrees does not seem that much larger than the 8.3 degrees of the MHG, so I wonder if it really is 9 degrees. It doesn't seem nearly as wide as the NL 8x32. Part of it is that the edges on the MHG are sharper, so the FOV seems larger. The UHD 8x32 is a nice binocular, and you might prefer it, but my preference was for the 8x42 MHG. I returned the UHD 8x32."


"With such significant fields of view, I didn't expect them to be corrected in a perfect way. On the other hand, if the new Razors are supposed to compete with the best, they should be devoid of too many compromises. Unfortunately for the Vortex, there are a lot of compromises here. First, you can spot immediately the decrease of sharpness near the edge of the frame. In the 8x32 model it appears near 3/4 of the distance from the center, while in the 10x32 model is visible even earlier. Distortion is even more noticeable closer to the center of the image. In both models there is a noticeable coma that appears around 70-75% of the field of view radius, and at the very edge it is on the borderline between medium and high levels.

To sum up, I don't doubt that the new Razors UHD won't be a serious threat to such instruments as the Swarovski NL Pure or the Zeiss Victory SF. I can even say more: I suppose they will have serious problems to compete even with lesser models of Swarovski and Zeiss from the CL Companion, SFL, or even Conquest HD line. Still, I also hope that our disappointment connected to the 32 mm Razor UHD instruments will be soon sweetened up by small and shapely Razor HD 8x30 and 10x30 devices, moderately priced on a level of below 1000 USD."
You change your opnions more often than you do your underwear. That's why I don't take your reviews seriously. Also, allbinos is merely another opinion, and another that I take with a grain of salt. I admit to taking them much more seriously than I do you though.
 
Edge
(though SF shows highest CA at edge)...
Here in particular we must be seeing a camera white balance issue that's making SFL look much cooler than the others. I think there have been other instances as well, especially in more casual shots of models indoors. So many things to control for when digibinning.

[to Denco] You change your opnions more often than you do your underwear.
Not to mention, Vortex, Nikon, Canon, what has any of this to do with Zeiss 8-power bins?
 
jackjack. Have you ever compared the top porros like the Nikon E2 8x30, Nikon SE 8x32, Swarovski Habicht 8x30 and the APM MS-8x32 IF-ED? I think the APM could be better than the other three because it uses Hoya ED glass and has absolutely no CA and has better contrast.
APM MS vs E2

APM have

better color renedition

better sharpness

better CA

better distortion

E2 have

better glare suppression

wider view Apm's FOV is not 8.2 it's aroung 7.4

haven't seen SE 8x32


for harbi 8x30, it was sharper and brighter and better color fidelity then E2 but much smaller FOV.
 
Here in particular we must be seeing a camera white balance issue that's making SFL look much cooler than the others. I think there have been other instances as well, especially in more casual shots of models indoors. So many things to control for when digibinning.


Not to mention, Vortex, Nikon, Canon, what has any of this to do with Zeiss 8-power bins?
It could be a white balance but it is clear that SFL series is better at rendering color then any other Zeiss bino.
 
So what's the deal on Vortex UHD?
'new arrival at $1099

vs
vortex website at $2150
vortex retail price seems too expensive for their optics(Like nikon in Korea). Razor UHD series are nice 1500$ not up to 2200
 
I think that is the SFL's claim to fame. Accurate color rendering. For so long many Zeiss have had a green tint and I think Zeiss just finally decided to get rid of it.
small and light bino with best color renedition around Big 3 binos

what I love.

optically It have no significant shining except for color fidelity.

not as bright as HT, not as wide as SF, not as sharp as EL but it doesn't have fallouts to. such as distortion of HT, color fidelity of SF, Glare of EL
 

Users who are viewing this thread

Back
Top