Does the "objective turret" belong to the beautiful black WL or the BH2?MikeBradley wrote:...I do now have the objective turret and it carries a Nikon Plan 2/0.05, a Zeiss F10/0.25, a Oly LWD CDPlan 20PL/0.4, a. ULWD CDPlan 40PL, 0.5, both the CDPlans have correction collars. Oculars are Carl Zeiss 12.5 Kpl-W (eyeglass), in a binocular head. There is a spare vertical monocular tube. The previous use of this instrument may have been for examining shallow culture dishes.
My first impressions are that the two LWD objectives are disappointing in contrast and sharpness , a side by side comparison with an LB Olympus SPlan 20x/0.46 objectives taken off my BH2 demonstrates this quite clearly. I’ll spend a bit more time working the correction collars tomorrow...
In my experience,
(1) Mixing Olympus and Zeiss objectives and compensating eyepieces raises issues of parfocality and chromatic abberations, visible by eye and accentuated by the camera.
(2) An LWD 40X Olympus objective gave inferior contrast and sharpness on a BHS stand.
Phase telescopes are not very specific to the microscope brand. I use either a Nikon p.t. or a Bausch and Lomb p.t. They differ from each other in length and shape, but both are satisfactory for the Zeiss.