Obie BT 100 45.......Cruel and unusual punishment!
Posted 22 April 2005 - 09:03 PM
If I wasn't crying it'd be funny.
Seven weeks have passed since my order was placed. My BT 100 45s have finally arrived.......WICKED AWESOME...ha ha
Yes the anticipation has climbed to the stars and yes I was happy to learn a Package was waiting for me at the post office today.....ALAS, only one of three packages.
Add to this mother nature thinks it wise to cloud over and rain for 5/6 days!!!!!!
Back to the packages.
Received....one BT 100 45 Oberwerk binocular.
Still in limbo somewhere....one tripod.
Still in limbo somewhere....one fork mount.
AHHHHHHHHHHHHHHHHHHHHHHHehehehehehe.....OH the agony:)
I suppose this is customs fault.
Anyways, the case it comes in is impressive, I love the little compass in the extendable handle.
The binocs are quite solid and heavy.
Coatings on main objectives are beautiful and like Edz points out reflect very little. NICE.
The feel of the mechanical workings are very smooth and have an even resistance to them.
One of the supplied EPs fits a little looser in the helical focuser than the other. Haven spoken the Kevin B. at Oberwerk he has offered to send me two more EPs to be sure I have a matching fit. That's great service!
He had another thought that it might be an O-ring issue?
I'll have more time this weekend to check it out further.
I tried a couple other EPs I have and they seemed to fit great. So maybe one of the EPs is slightly out of spec?
All looks great so far. I'll try to add more in the near future.
To all with clear skies......get out and view:)
Posted 22 April 2005 - 09:36 PM
Posted 25 April 2005 - 09:04 PM
Posted 25 April 2005 - 10:49 PM
the focal length of the (straight thru) BT100 is 620mm, so it gives 25.3x.
Is there a different set of eyepieces with later models of the BT100?
The prism arrangement could result in a slightly differnt focal length,
hence the need for a slightly different eyepiece.
Posted 26 April 2005 - 06:24 AM
These figures are taken from the manual provided with my binocs SW100/Q45-B.....or the BT 100 45.
Stamped on EPs......23.9mm
Field of view.......2'30"
Exit pupil distance..14mm
Range of diopter....+ and - 5diopters
Yeah, so last night without a tripod/mount and few brief breaks in the clouds. I hand held/propped up(don,t ask)the binocs long enough to view Jupiter and 3 moons, Saturn and rings(no gaps) and M37(cool).
Not a true test but initial thoughts are HAPPY HAPPY:)
Posted 26 April 2005 - 07:07 AM
Posted 27 April 2005 - 04:50 AM
Posted 27 April 2005 - 08:55 AM
You can also check the "Live Chat Room" at the bigbinoculars home page. I usually receive instant responses to my questions when the chat room is open.
I believe Poland is 6 hrs ahead of Ohio, USA.
Posted 27 April 2005 - 04:35 PM
Canada post finally delivered my mount and tripod today.
Better late than never I guess?
All arrived in excellent condition.
I'm going to make 2 slight modifications(mount related)
First I'll add a flat washer to the rubber washer where the bolt fastens the binocular to the mount.
Secound involves the shoe on the mount where the binoc mates to it. I'll have to shimmy something into it as the fit is a little spacious. The binoc can shift(angle) a bit side to side if the bolt isn't right tight. Getting the bolt tight compresses the rubber washer more than I like in its center. These are not essential and the set up works quite well regardless.
Can't wait to try it out............
Just need some clear skys now!
More later as I g2g:)
Posted 29 April 2005 - 12:50 PM
That rubber washer was the first thing to go. I mentioned it to Kevin just after I recieved mine. The only reason I could think of for a rubber washer at that location would be to protect the paint.........at the expense of a wobbly bino. IMHO..........I agree......... ditch the washer.
Posted 30 April 2005 - 12:05 PM
Finally......A clear break....kinda.
Went out to view for an hour with less than perfect sky's.
My thoughts are I made a good purchase. Optics give a bright image and using two eyes at this power(25x)is great!
Without my viewfinder or atlas it was easy and fun using the wide FOV to easily locate and get good/awesome views of these objects......
Saturn-Gap between rings and Saturn-Titan
Messier objects #3,35,36,37,38,42,44,51,84,86,87,101:)
I loved the quick set up time and portability of this BT 100 45 set-up. The tripod/fork mount performed well and gave good stability.
I would have viewed longer but for tiredness and some hick backroad slack jawed yokals(more about that in another thread).
Posted 30 April 2005 - 02:36 PM