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

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  1. B

    is bridge camera dead? Canon/other manufacturers are unwilling to come out with new one?

    as above. Didn't see any new release. P950 was quite old (3 years old). Sx70 was like 5 years ago
  2. B

    Canon SX60HS in Action

    strange no one mention P600 which is cheaper
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    Canon SX60HS in Action

    I am a Singaporean and Sim Lim Square is a bad place to go for electronic now. Here is one article on it (http://exchersonesusaurea.blogspot.sg/2012/09/where-singapore-scammers-thugs-and.html). Even Singaporeans don't like to go Sim Lim Square now (it quite deserted) If you really want to buy...
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    Do Sigma lens (120-300) depreciate in price and should I get this?

    I was aiming to buy a used sigma 120-300 OS for US$2300 (e.g. the owner claims to have only used 3 times). This lens buy is not urgent as I have a 400mm f5.6l. My question is 1) Will sigma lens (especially this) appreciate in price suddenly till it become too expensive to buy? 2) Is it a good...
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    Manual lens for birding?

    I currently have 400mm f5.6l. I was wondering if I don't do BIF, will I be better off upgrading to a manual lens like canon FD lens (Assuming I have infinite time framing my shot)? I am usually doing videoing. For example, I saw a 300mm FD f2.8l (I was thinking to use a 2x on it) selling for...
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    Next upgrade from 400mm f5.6l - Sigma 300mm f2.8??

    saw that sigma 120-300mm works much beter tha sigma 300mm 2.8.
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    Next upgrade from 400mm f5.6l - Sigma 300mm f2.8??

    Anyone can recommend me an upgrade alternative to 300mm f2.8 sigma? I always need the 300mm end so I am not sure whether 120-300 is value for money and zoom is sharp enough
  8. B

    Next upgrade from 400mm f5.6l - Sigma 300mm f2.8??

    What is the next upgrade? Sigma 300mm f2.8? This lens is cheaper and only cost US$2k second hand. With a 2x teleconverter, will it beat 400mm f5.6L?
  9. B

    Digiscoping with Telescope vs Spotting Scope

    1) Does telescope or spotting scope will have better optical performance? 2) I understand a telescope gives a inverted image. But it will not matter when you are digiscoping right? 3) If I have $2000 and wanted to buy a good combo of telescope and DSLR, what will you recommend?
  10. B

    Will this digiscoping adapter fit my binocular and camera?

    GO people recommend me this, but they said "just make sure it is big enough to cover the eyepiece". How do I know whether this is big enough to cover the eyepiece? I am using 28x110 GO bino and IXUS 850IS
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    Is one side of bino equal to a refractor?

    I have a 28x110 which i used for digiscoping. I was thinking whether if a upgrade to 80mm refractor will improve the digiscoping image? If one side of binocular equals to a refractor, then it will not improve as the refractor is 80mm and my bino is 110mm in diameter
  12. B

    Minimum focus distance increase after lasik!!!

    Thanks a lot
  13. B

    Minimum focus distance increase after lasik!!!

    Yes, I ran out of close focus. I am able to use my 10x70 and 10x42 very well after the surgery. I can still use the 28x110 to focus on further object
  14. B

    Minimum focus distance increase after lasik!!!

    I used to be able to focus my 28x110 binocular at 100m distance before lasik. After lasik, I cannot focus anymore as I have turned the knob to the extreme already. Anyone recommend me a way to fix this problem?
  15. B

    Planning to digiscope with 28x110 binoculars. Please advise

    I have a GO 28x110 Binoculars which I left it in the storeroom and I will now have a hard time retrieving it out. Before I proceed with Digiscoping with the 28x110 binocular, I have some questions which I hope to get some answers. Q1) I tried digiscoping using HS10+Zen Ray 10x42 binocular. To...
  16. B

    Image quality of spotting scope better than binoculars?

    My 10x70 Fujinon binocular cost $600 and it is so small. I digiscope with it and got ok result. I was wondering if I buy a celestron reflector which is 1) heavier (heavier==better result) 2) the same price (the celestron IMO value for money because we do not have to pay a premium for fujinon)...
  17. B

    Digiscoping vs. Canon 550d crop mood

    but will it be 1555mm f2?
  18. B

    Digiscoping vs. Canon 550d crop mood

    Will 550d replaces the technique of digiscoping? With a effective crop of 7.2X and a crop rate of 1.6X, it multiply to 11.52X. That means a normal 135mm f2 will become a 1555mm f2, which give a ability to take super telephoto video at low light. Am I too stupid to state this statement? Is...
  19. B

    center focus control question

    Just wondering, when we adjust the central and then the right eyepiece relative to the left eyepiece already, can we just lock it and forget about it. For instance, if we adjust perfectly in the daytime, will we need to readjust at night again?
  20. B

    Will I need exit pupil of 7mm in a concert?

    Maybe that why there hardly any binocular with 7mm exit pupil except for Astro and Marine. From what I read in the forum, I think 4.2mm should be enough. Thanks.
  21. B

    Will I need exit pupil of 7mm in a concert?

    Thanks for your quick reply Tero. What if sometimes the stage is dimly lit intentionally? Will 4.2mm exit pupil be enough? Or should I get 5.2mm? Actually, I am quite used to my 10x since I am using the 10X70 all along (just that it is quite hard to hand-held)
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    Will I need exit pupil of 7mm in a concert?

    Hi, I tried to research on this but cannot find an answer. I love going to night concert and require a binocular. I am going to get a Zen-Ray bino due to the good review on them but I am unsure which one to get, whether should I get a 8X42 or 10X42 or 7X50. The problem is I am now using my...
  23. B

    Should I get a spotting scope when I already have a 10X70 Fujinon

    so if I need only 10X, should I stick to the Bino or will buying Swarovski scope be better (I was thinking the IQ may be better because it is refractors). I be sometimes owling so I think a exit pupil of 7 is good. Also, a 10X100 is useless as a 10X70 is adequate (as human pupil is 7mm at...
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    Should I get a spotting scope when I already have a 10X70 Fujinon

    Hi I am new to birding. Heard good things about Swarovski scope which has a diameter of 65mm and 85mm. If I only need it for 10-15X magnification as I am viewing birdings that are quite near to me, should I get a Swarovski scope and a eyepiece that give me 10-15X magnification (If there is any)...
  25. B

    F-stop value for Digiscoping?

    Using digiscoping, I acheived 1000mm using 70mm diameter binocular. F-stop should be = 1000/70=f14. However, with the crop factor of 5X, the focal length should be 200mm and the F-stop is 200/70=f3. Wooh that a impressive f-stop. I am confused whether should it be f14 or f3?
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