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BT-70s on way....

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#1 Mr. Bill

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Posted 29 May 2013 - 10:36 AM

After reading Phil H review I decided to get these for future Australia trip (as well as now Nevada trips.)

Will get in time for next new moon cycle. 19mm Pans= 20x and 3.5mm exit pupil and 3+ degree fov.

http://bigbinoculars...mages/64-65.pdf

:cool:

#2 Jarrod

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Posted 29 May 2013 - 11:33 AM

:cool:

I look forward to hearing your impressions.

#3 Jawaid I. Abbasi

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Posted 29 May 2013 - 12:06 PM

Mr Bill,
Is not "Garrett 90 degree 70mm" has the same quality plus 90 degree, twist lock eyepieces holder as an extra feature much better ?

#4 Mr. Bill

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Posted 29 May 2013 - 12:55 PM

Mr Bill,
Is not "Garrett 90 degree 70mm" has the same quality plus 90 degree, twist lock eyepieces holder as an extra feature much better ?


No. Frankly, I have not been impressed with Garrett products and find 45 degree oculars to be just fine. If Phil H. is impressed with the BT70 45s, I'm sure I will be too (although I think I tend to be a bit more critical in my product evaluations.)

I prefer doing business with Kevin B...at least I can talk on the phone with him; try that with Garrett

#5 Mr. Bill

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Posted 29 May 2013 - 02:24 PM

:cool:

I look forward to hearing your impressions.


These were bought to compare directly to my Fuji 16x70s....if they pass the "smell test" I'll probably put the Fujis up for sale. I'm a user, not a collector and don't need two that do the same job.

:cool:

#6 Jawaid I. Abbasi

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Posted 29 May 2013 - 02:31 PM

I do like Oberweck too. As a matter of fact; I have Deluxe 100mm Center focus and that thing is very good to excellent in every aspect.

The twist lock feature if available in Oberweck; then it will be even better and perhaps will also be a selling point.
The twist lock feature almost eliminate the "collimination" problem and changing eyepieces in a snap.

Anyways, Let us know you liking and first report when you receive your instrument.

Thank you,

#7 chuck56

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Posted 29 May 2013 - 02:52 PM

Ditto on the report!

#8 curiosidad

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Posted 29 May 2013 - 03:26 PM

Hello,
It would be possible to use with this binoculars two ep. zoom?
Thanks

#9 Mr. Bill

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Posted 29 May 2013 - 04:43 PM

Hello,
It would be possible to use with this binoculars two ep. zoom?
Thanks


Don't know...send me a pair and we'll find out.

:grin:

#10 daniel_h

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Posted 29 May 2013 - 06:19 PM

i think Rony the sketching guru has a pair of these, teleskop-express sell them

#11 curiosidad

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Posted 30 May 2013 - 09:38 AM

Hello,
Thanks for the reply.
I will ask to TS in Europe.
Best

#12 Mr. Bill

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Posted 31 May 2013 - 09:17 AM

BT70s in Fed Ex system....expected delivery next Wed.

#13 Rich V.

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Posted 31 May 2013 - 09:43 AM

It will be interesting to see how these BT70s compare to your 16x70 FMTs at 16x, Bill.

The 45° viewing angle will certainly be a plus but I'm wondering about contrast and edge of field correction. Looking forward to your impressions...

Rich

#14 Goodchild

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Posted 01 June 2013 - 12:28 PM

I just received my edition of Astronomy magazine with Phil's review of these binos. Can I say that he "raved" about them? A very promising report. No chromatic abberation, that's encouraging. The only thing missing in his report is whether or not these objectives lived up to their stated 70mm aperture. Bill, looking forward to your evaluation to compare to Phil's. If you concur, I can see a pair of these in my future.

#15 rdandrea

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Posted 01 June 2013 - 12:48 PM

BT70s in Fed Ex system....expected delivery next Wed.


Great. That means rain for the full new Moon week.

#16 Mr. Bill

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Posted 01 June 2013 - 12:52 PM

BT70s in Fed Ex system....expected delivery next Wed.


Great. That means rain for the full new Moon week.


Only over my house... :grin:

#17 Goodchild

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Posted 01 June 2013 - 04:32 PM

Would a TV Telepod mount handle this bino? If I get one I'd like to get a fork mount for it.

#18 John F

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Posted 03 June 2013 - 10:59 PM

Congratulations on your purchase. I look forward to hearing what you think of them after using them. I called BigBinoculars.com this morning to ask a few questions concerning them and decided to order a pair.

When I read Phil Harrington's review in Astronomy magazine the other day they looked very interesting and I was amazed by four things. First, their feature set. Second, their apparent quality. Third, their very low price. Fourth, that you can use standard astronomical eyepieces with them. I also like the fact that they're not too large or heavy.

With the TV binoviewing eyepieces that I already have I should be able to use this new BT-70-45 at 16x-20x-24x-28x-34x & 42x so that enables a lot of potential uses for it both astronomically and terrestrially. After I receive it and get to try it out for a while I post my impressions of it.

John Finnan

#19 Vondragonnoggin

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Posted 04 June 2013 - 07:40 AM

As far as Garret vs Oberwerk, from Kevin's reputation, I would rather deal with Kevin.

Buying the Garret's is a crapshoot on issues as Glenn can attest by seeing the issues in mine. I would rather have Kevin's inspection and QC.

Rather have 90 over 45, but rather have a 45 that has better quality than a 90 with one barrel having unfixable astigmatism.

Maybe you get a great pair from Garret, maybe not, but I'll never chance tht one again. Still nice for lower powers (up to about 40x).

The twist lock oculars aren't that great. Depending on your eyepieces used I suppose. If using less expensive eyepieces, I found it better not to lock them because you have to leave them loose to turn sometimes to get precise merging at higher powers. Leaving them loose in a 90 degree is pretty safe. Don't think a 45 at high positions would be good to leave loose as they might slip out.

Good luck with yours. I'm sure you'll get a decent pair from Oberwerk.

#20 Mr. Bill

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Posted 04 June 2013 - 09:04 AM

I'll start a new thread comparing the Fuji 16x70 to the BT70 which is also 16x70 with the supplied eps...also have pairs of 24mm and 19mm Pans and 14mm Denks.

:cool:

#21 Mr. Bill

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Posted 06 June 2013 - 08:53 PM

Arrived...

Attached Files



#22 Mr. Bill

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Posted 06 June 2013 - 08:54 PM

More....

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#23 Mr. Bill

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Posted 06 June 2013 - 08:56 PM

Some more...

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#24 Mr. Bill

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Posted 06 June 2013 - 08:57 PM

And still more...

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#25 Jarrod

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Posted 06 June 2013 - 10:18 PM

:woohoo: :gotpopcorn:






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