• 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.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Search results

thxpress_search_the_forum Search Opus
  1. A

    Brief comparison berween MHG VS EDG '8X42'

    Interesting observation, I wouldn't have expected that. I thought the SF was an improvement or equal to the FL, which has almost zero CA. Furthermore, the edg is quite smaller than the SF. But at the same time, the SF has less lenses in the objective, this could compromise the CA correction.
  2. A

    Visual effects in binoculars when used with polarisers

    The water reflections are partially polarised, sometimes it can be 100% polarised. Maybe when you rotate the binos, the prisms change the polarization.
  3. A

    Monarch M7 8x42 problem

    It doesn't really bother me when I watch a bird. I only notice it when reading text. Besides, it is hard to get the precise ipd setting, once set I never want to touch it again.
  4. A

    Comparing 10x32 NL with 8x42 NL, some (not ground breaking) thoughts...

    Okay, I think I now understand what you are saying. In another example, 8x42 vs 10x42, if our pupils are 2.5mm, the 10x bino would squeeze the light a bit more so it doesn't matter if both binos collect the same amount of light, with the 10x, a greater percetage of this light actually goes to...
  5. A

    Monarch M7 8x42 problem

    But the problem happens whenever you use both eyes right? I got a kind of similar situation with my Monarch HG 10x42. Whenever I look at something close like a few meters, it looks very good. However if I look at text at the same distance, it looks a bit blurry. When looking through each tube...
  6. A

    Vignetting in Binoculars

    Interesting discussion. Are we talking about a vignetting of the edges when looking at the center of the FOV, that we cannot detect? Or when we roll our eyeballs and look at the edges, or both? I assume this vignetting would only happen in dim lighting, otherwise in bright light our pupils would...
  7. A

    52mm NL Pure release date estimate?

    The wx's afov is considerable larger than the ISO calculated value of 76 degrees. The actual value was measured around 85 degrees, there is a recent thread about this discrepancy on cloudy nights.
  8. A

    Speculative 10x30/32 question

    That depends on the user, you also pay way less for 90% of the performance of an alpha. Some people are willing to pay 3x extra for that 5-10% difference. I remember another thread where you praised the subalphas like Trac Torics, according to you, why would someone spend $3000 for an alpha when...
  9. A

    Nikon EII general question- Zeiss or B&L framed bino?

    Very nice, do you have more of these xray images posted somewhere? I am curious to see other bino designs, it should be easier to do xray images rather than make binocular cutaways.
  10. A

    Product Review: The Sky Rover Banner Cloud 8 x 42 Binocular

    Nice review, I am always looking forward to your impressions and own measurements of these instruments. May I ask how you measure the apparent FOV? I thought of a couple of methods to do this at home, but I feel like it is harder to measure than the TFOV, I wonder if there is a simpler approach.
  11. A

    Swarovski NL 8x42 vs Skyrover apo 8x42 sharpness contrast microcontrast etc

    At the same time here there are many that see an "obvious" difference between the ~1000$ class and ~3000. I even read from someone here that the SFL is a clear "step up" from a CHD or MHG. The expression that I used "to crush" is a bit exaggerated, but for people that value wide AFOV and edge...
  12. A

    Swarovski NL 8x42 vs Skyrover apo 8x42 sharpness contrast microcontrast etc

    Whether the SRBC is in fact at the same level as the NL Pure or Zeiss SF in terms of pure optical performance seems to be a controversial topic in this forum. Can we then safely say it crushes the subalphas such as the MHG, Conquest, SFL, etc?
  13. A

    Swarovski NL 8x42 vs Skyrover apo 8x42 sharpness contrast microcontrast etc

    We can argue non stop about if we perceive that bino A is sharper than bino B, or which has the best contrast/micro contrast/macro contrast, etc. There are so many threads about this in the forum, comparing all possible combinations of pairs of binoculars. I think that if we start measuring...
  14. A

    EII - Increased Brightness following on from 100th Anniversary Edition

    That's good. Would you say that you also had the old EII (long before the Anniversary edition) that have an "obvious" red tint according to some in the forum? To be fair, I don't really notice differences in brightness, but I think I would be able to notice differences in color tint, and...
  15. A

    EII - Increased Brightness following on from 100th Anniversary Edition

    I don't understand. Mine has the serial number 822... but it has green reflections on the objectives when the light is reflected perpendicular to the glass, it does become purple when you look at it at an angle. The ocular lenses have different tones of olive green reflections when the light...
  16. A

    Nikon HG 8x30 dissection

    I already tried "harder" like you say and put them under the tap. First thing I noticed was that some oil/grease was washing away, there was a thin layer of oil deposited on the lens after that. But I got the impression that the dust got stuck in the grease/oil, I tried harder, several times...
  17. A

    Nikon HG 8x30 dissection

    I agree that the overall quality of the binocular is very high, nice materials, finish, etc. The eyecups seem to be good quality, but there is a serious flaw in their design: you can't unscrew them. Not only you can't replace them without sending it to Nikon if they break (I guess it is the most...
  18. A

    Perhaps another game changer

    I think comparing it to the alphas would be a bit of a stretch, but like someone said above, it would be very interesting to see a comparison with "subalphas". By reading all of these reviews I get the impression that these Sky Rover would destroy a CHD, all the Monarch series, Trinovids, etc...
  19. A

    New but probably wrong insight about lowlight

    I think the image is not wrong, but it would mean that if you look at a point source, in those circumstances (same eye's pupil size, and exit pupil of 8 mag bino too big compared to the eye) the point source would look brighter in the 10x bino. Now an extended image, say you look at the wall...
  20. A

    Analysis Paralysis- Please help me choose!

    Have you considered Nikon Monarch hg? Now there seems to be a discount on their website Edit: I know it has a much wider fov than the conquest at that specific configuration
  21. A

    Zeiss SF 8x30 vs SFL 8x40

    Don't the Victory SF series have field flatteners? I never looked through them, but I have read in this forum that they have one of the flattest fields.
  22. A

    Help! Coatings on Victory SF being... weird?

    I also find it bizarre that the coatings are different in each tube. Why would they change the coatings formula midway when making the batch of binos? Wouldn't Zeiss have the lenses carefully catalogued by batch, element, and coating formula to not mix up different coatings for a individual...
  23. A

    Do you use your Nikon roofs in the rain?

    If they warn us to not leave them in a car in the sun, this implies that the binos could get damaged in some way by the heat. And if they could get damaged inside a car in the sun for a couple of hours in Germany for instance (summer), it means that they could easily get damaged if I just walk...
  24. A

    Do you use your Nikon roofs in the rain?

    I own a Monarch HG and I post this question because despite the claimed waterproofness, I am not comfortable using them when it is raining and I think this defeats the purpose of it being waterproof. I don't know if you have read the manual of Nikon binos, but they say that "movable parts" have...
    • agus_m
    • Thread
    • focus wheel temperature waterproof
    • Replies: 16
    • Forum: Nikon
  25. A

    Rarity of technical binocular reviews

    I have read the full thread and I thought of the following point. For cameras there are parameters that you can measure directly from the images you capture, like resolution, MTF, flatness of the field, maybe transmittance? The camera sensor is at the correct location (in contrast to the problem...
Back
Top