Dear All, In crystal examination stereo zoom microscopes, how important is it if one chooses a Achromatic objective lens compared to Apochromatic lens. Achromatic can give higher working distance ~ 70 mm or more as compared to Apochromatic, which may be important for picking crystals / manipulating before flash freezing. Is it good to compromise on working distance to get Apochromatic objective?
An input from the community will be of great help to me. Many thanks in advance, Natesh. --------------------------------------- Ramanathan Natesh Now at IISER-TVM (India). "Live Simply and do Serious Things .. " - Dorothy Mary Crowfoot Hodgkin OM, FRS "In Science truth always wins" - Max Ferdinand Perutz OM FRS ---------------------------------------