https://www.amazon.com/Fluke-FLK-LENS-4XTELE2-4X-Telephoto-TiX560/dp/B00Z9Z84WW https://www.amazon.com/Fluke-FLK-LENS-4XTELE2-4X-Telephoto-T... Basically doubl

https://www.amazon.com/Fluke-FLK-LENS-4XTELE2-4X-Telephoto-TiX560/dp/B00Z9Z84WW https://www.amazon.com/Fluke-FLK-LENS-4XTELE2-4X-Telephoto-T... Basically double that of high end SLR lenses.