This eyepiece has an extra positive element, and the form of the lenses is different (Fig. 11.9). It has a concave surface near to the intermediate image.
Heinrich Erfle (April 1, 1884, Dürkheim – April 8, 1923, Jena) was a German optician who spent most of his career at Carl Zeiss. In 1917 he invented the ...
This eyepiece design uses no barlow elements, thus eliminating magnification change across the entire field which reduces curvature of field. The only drawback ...
Dr. Erfle is a Board-Certified Foot and Ankle Reconstructive Surgeon by the American Board of Podiatric Surgery. He is a fellow of the American College of ...
Based on the original century-old design by Heinrich Erfle, this eyepiece has 5 lenses divided into 3 groups and offers an apparent field of view of ...
$47.50
Our great 2" eyepiece is now even better. We added a black anodized aluminum barrel that's threaded for filters. 5 element erfle design.
Feb 25, 2023 · The longest labelled-as FL Erfle I have is a 55mm Siberia. The most ecletic are 40mm, those being a Rodenstock and a Vernonscope. The classic ...
Julie Erfle hails from North Dakota, but has called Arizona home for more than twenty years. She began her career in Phoenix as a creative services producer ...
Matt Erfle (44) Defense - Junior (2020) Appeared in all four games as a junior. Did not register any points. Grabbed five ground balls and had three caused.
The Erfle family name was found in the USA in 1920. In 1920 there were 2 Erfle families living in North Dakota. This was 100% of all the recorded Erfle's in USA ...