• 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. D

    Harpia 95 Depth Of Field At Full Zoom.

    Ok, that explains your feeling at 70x... As you increase magnification the depth of field decrease proportionally. If you add very big distances, the limitations increase since atmospheric conditions become even more limiting. I use frequently >120x to read nasal saddles codes at >220m until...
  2. D

    Harpia 95 Depth Of Field At Full Zoom.

    Did you usually used the 25-75x zoom ep on your ED82?
  3. D

    Harpia 95 Depth Of Field At Full Zoom.

    Most probably a bad sample. The Harpia 95 I tried hadn't the problems you describe and was even sharper than my STX95 at the centre of the field http://www.pt-ducks.com/cr-telescopes.htm#Swarovski_X95_vs_Zeiss_Harpia95, but the Swaro is also sharp at 122x...;) Comparing your sample to the one of...
Back
Top