Specification Comparison Chart Model name Objective diameter (mm) Length (mm)* Width (mm)* Weight (g)* Fieldscope ED82 82 327 108 1,575 Fieldscope ED82 A 82 339 108 1,670 Fieldscope III 60 279 80 1,080 Fieldscope III A 60 291 94 1,180 Fieldscope EDIII 60 279 80 1,090 Fieldscope EDIII A 60 291 94 1,190 Fieldscope ED50 50 209 71 455 Fieldscope ED50 A 50 207 71 470 Spotting Scope RAIII 65 WP 65 293 105 900 Spotting Scope RAIII 65 A WP 65 304 105 920 Spotting Scope RAIII 82 WP 82 380 114 1,200 Spotting Scope RAIII 82 A WP 82 391 114 1,220 Spotter XL II 60 313 74 885 *Body only (except Spotter XL II)