• 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. W

    Bird ID - Austin TX area, Feb 2016

    Can anyone help ID'ing a small flock of birds I saw while walking around the campus where I work in Austin, TX last week? I did not have binoculars and they would fly away when I got anywhere near so I did not get a great look; they are not birds I normally see so I assume they might be...
  2. W

    $100 small/"travel" binocular recommendations for eyeglass wearers?

    sub-$150 small/"travel" binocular recommendations for eyeglass wearers? Any recommendations for lightweight, general purpose (not birding-specific) "travel" binoculars that work for eyeglass wearers in the under $150 range? I was thinking maybe Nikon Prostaff 8x25 ATB?
  3. W

    Cooper's Hawk? Austin, TX area 12/11/13

    Thanks in advance.
  4. W

    Vortex Viper 15-45x65 (non-HD) - opinions?

    Hi all, I would appreciate any opinions or advice about the Vortex Viper 15-45x65 (non-HD), available new for $350. Is it a good value, or is it unrealistic to expect long-term satisfaction at that price point? It is $300 less than the "HD" extra-low dispersion glass model, but apparently...
  5. W

    Vortex Viper 15-45x65 (non-HD) - opinions?

    Hi all, I would appreciate any opinions or advice about the Vortex Viper 15-45x65 (non-HD), available new for $350. Is it a good value, or is it unrealistic to expect long-term satisfaction at that price point? It is $300 less than the "HD" extra-low dispersion glass model, but apparently...
  6. W

    ID help please, Austin TX USA 1/22/12

    ID help appreciated - I was thinking maybe Mourning Warbler?
  7. W

    DOF as a function of brightness

    In this review by Pete Dunne, he states that (all else being equal) a binocular that produces a brighter view will give greater depth of field than one with a dimmer view, since the brighter model will cause your pupil to constrict further (and that this is analagous to stopping down the...
  8. W

    Winged Eyecups

    There seem to be 2 types of winged eyecups available for the SLC 8x30 - PN 44002 ($17.00 each) and PN 44106 ($30.00 for a pair with matching rainguard) - what are the differences between the two?
  9. W

    Fullsize bins in the daytime

    It's often said here that the larger exit pupil you get with, say, a given model of fullsized binoculars vs. its midsized counterpart doesn't provide a brightness advantage except in the first few minutes of dawn or last few minutes of dusk (or in full dark, for astrononmical use), because when...
  10. W

    What does "Apparent" Angle of View tell you?

    Say you have two binoculars with the following specs (numbers are made up and approximate): 7X, 449' FOV at 1000yds, 8.6º Angle of View 10X, 314' FOV at 1000yds, 6.0º Angle of View Going by these numbers the 7X would be considered to have a quite wide field of view and the 10X a somewhat...
  11. W

    "Digibinning" question

    If "digibinning" with, say, Swaro 8x binoculars and their "Snapshot" adapter with a typical/appropriate digital camera, what sort of magnification is possible in "35mm equivalent focal length" terms? In other words, are the results (in terms of magnification only) roughly equivalent to a 35mm...
  12. W

    Swaro SLC 8x30 vs Pentax ED 8x32 DCF ED

    I'm looking at the Swarovski 8x30 SLCs ($850) and the Pentax 8x32 DCF EDs ($575) and would welcome opinions and comparisons with regards to optical/mechanical quality and value from anyone who has tried both...no local dealers carry the Pentax model; and I don't yet know if my local Cabela's has...
  13. W

    Eyeglass lenses

    I am in need of new glasses, and was just wondering if any of the optics enthusiasts here have any preferences, thoughts or advice about eyeglass lens materials/designs/coatings - glass, plastic (CR-39), polycarbonate, Trivex, aspheric, etc. FWIW I am moderately nearsighted (-3.25 diopter...
  14. W

    Scope to use with Televue eyepieces?

    I've got a couple of 1.25" Televue astronomical eyepieces acquired years ago sitting in the closet - a 20mm and 32mm Plossl. Are there 45 degree birding/spotting scopes usable with these eyepieces? If so, would it make sense to shop for a scope with the intention of using them? Which...
  15. W

    Terminology Q's - Center vs Edge "Sharpness" vs "Focus"

    With my binoculars, if I've focused on the center of the field, there is some softness to the view at the edges, as would be expected...however, if I refocus, I can bring the edges into a good deal sharper view (then putting the center out of focus, of course). Is this what's generally meant...
  16. W

    New 8x30 EIIs, $240, Legit?

    Link
  17. W

    Hornsby Bend (Austin) question

    Driving the narrow roads around the ponds I was glad I didn't come across a vehicle coming from the other direction! - I saw no "One Way" signs, so didn't think travel was restricted to one direction or another - how do you handle oncoming traffic on those paths with little room to pass without...
  18. W

    Monarch ATB 8x36 vs SHE ATB vs 8x36

    Monarch ATB 8x36 vs Monarch SHE ATB 8x36 Are there differences between these two binoculars besides the color? The specifications on the website seem identical - including all optical measurements, and size/weight to the mm/gram - but given the $150 differential in MSRP (and taking into...
  19. W

    Swift 804 Eye Relief Spec

    Does anyone know the Eye Relief specification for ca. 1997 Swift "HR/5 Fully Multicoated" 8.5x44 Model 804's? Thanks.
  20. W

    8x32s - Vortex Viper vs Pentax DCF SP

    Hi all, looking any opinions about the Vortex Viper vs. the Pentax DCF SP, or any other 8x32 options around $350 street price - Thanks.
Back
Top