SurgiTel ErgoVision Telescopes
Overall
4.7
Strengths
Extra comfort level afforded by the flip-ups, which have two different adjustments to customize the viewing/declination angle. These adjustments tend to reduce strain on your neck and are not possible with any of the TTL loupes. The ErgoVision frames help even the TTL design by increasing the declination angle so the strain on your neck is lessened somewhat. The unique double nose pad also helps with comfort. Compact prisms give you most of the benefits of the conventional ones but at less weight and less length. For example, from the top of the telescope, we measured a conventional 4.0x prism and a 5.5x compact version. While the conventional prism extended 6.3cm out from the eyeglass lens, the compact version reduced that distance to 4.9cm. Although this is not a quantum reduction, shorter is always better. Two evaluators also commented that the compact version has an enhanced depth of field compared to other models. A wider field of view was also mentioned as an advantage of the compact version over other models. Even with the 5.5x, a full quadrant can be viewed, while another evaluator reported a 3.0in/7.6cm view with 3.5x. And the interchangeable end caps can quickly increase or decrease your working distance by 2.0in/5.1cm.
Weaknesses
Side shields were considered to be flimsy, easy to break, hard to clean, and easily scratched. Prisms are very expensive.
BOTTOM LINE
The Compact Prisms keep them at the top.
Extra comfort level afforded by the flip-ups, which have two different adjustments to customize the viewing/declination angle. These adjustments tend to reduce strain on your neck and are not possible with any of the TTL loupes. The ErgoVision frames help even the TTL design by increasing the declination angle so the strain on your neck is lessened somewhat. The unique double nose pad also helps with comfort. Compact prisms give you most of the benefits of the conventional ones but at less weight and less length. For example, from the top of the telescope, we measured a conventional 4.0x prism and a 5.5x compact version. While the conventional prism extended 6.3cm out from the eyeglass lens, the compact version reduced that distance to 4.9cm. Although this is not a quantum reduction, shorter is always better. Two evaluators also commented that the compact version has an enhanced depth of field compared to other models. A wider field of view was also mentioned as an advantage of the compact version over other models. Even with the 5.5x, a full quadrant can be viewed, while another evaluator reported a 3.0in/7.6cm view with 3.5x. And the interchangeable end caps can quickly increase or decrease your working distance by 2.0in/5.1cm.
Weaknesses
Side shields were considered to be flimsy, easy to break, hard to clean, and easily scratched. Prisms are very expensive.
BOTTOM LINE
The Compact Prisms keep them at the top.
User reviews
There are no user reviews for this listing.
