venturi's contributions

Share venturi's profile

venturi

venturi's stats

Reviews

Review count
1
Helpfulness votes
6

First review
April 12, 2014
Last review
April 12, 2014
Featured reviews
0
Average rating
3

Reviews comments

Review comment count
0
Helpfulness votes
0

First review comment
None
Last review comment
None
Featured review comments
0

Questions

Question count
0
Helpfulness votes
0

First question
None
Last question
None
Featured questions
0

Answers

Answer count
0
Helpfulness votes
0

First answer
None
Last answer
None
Featured answers
0
Best answers
0

venturi's Reviews

Barska - Deep Sea 7x50 Binocular - Blue

7x50 WP Deep Sea Porro, with Internal Rangefinder & Directional Compas, 100% waterproof and fogproof, Fully coated optics, BAK-4 prisms for crisp images, Non-slip and ergonomic rubber design for a secure grip, Heavy-duty and shockproof rubber armor, Ideal for all outdoor activities in all weather conditions, Designed specifically for the nautical and boating enthusiast. With 7x magnification (most popular size because of the steady image achievable under rough sea conditions) and exceptional optics, this binocular provide clear views of marine observation from sunrise to sundown. Includes carrying case, neck strap, lens covers and lens cloth, Limited Lifetime Warranty (compass does not operate in southern hemisphere) Deep Sea 7x50 Binocular

Verified Purchaser
Customer has been confirmed to have purchased the item from Best Buy.
Verified Purchaser

Customer Rating

the internal compass is VERY poorly designed

on April 12, 2014

Posted by: venturi

from Green Bay, WI

Verified Purchase:Yes

I'm an optical engineer. Before purchase I noted reviews on the internet complaining that the internal compass display is not in focus although the object being viewed is crystal clear. I conducted tests in my lab. I spoke with Barska technical support and they confirmed my findings. The problem is limited "depth of field " focus on the compass card which is gimbaled and floats in oil. When the binoculars are aimed 20 degrees above horizontal the gimbaled card remains level and the display is in focus. When aimed horizontal the display is visible but very fuzzy out of focus. When aimed 20 degrees below horizontal the display is far out of focus and is not readable. Night time use with the red LED illumination is even worse. The same focus problem exists but the incorrect position of the LED causes a reflection off the shiny front surface of the compass card which COMPLETELY washes out the display. Barska tech support confirmed these design flaws. The gun sight type reticle for measuring distance is not illuminated so is useless at night. The accuracy of the compass with respect to magnetic North is VERY good, within +- 2.0 degrees of local magnetic north. Barska sells a digital display version of the same compass binoculars which SHOULD be free of these optical defects.

What's great about it: very clear binocular optics; good frame and body

What's not so great: junky compass....see below

No, I would not recommend this to a friend.

Durability

Ease of Use

Share this review:

+6points

6of 6voted this as helpful.

venturi's Review Comments

venturi has not submitted comments on any reviews.

venturi's Questions

venturi has not submitted any questions.

venturi's Answers

venturi has not submitted any answers.