Leica DM IRB manual Condenser performance data Condenser 0.30 S70, 121

HC FSA 25 PE

Binocular observation and photo tube, viewing angle 30°, with provision for optical overlay for documentation of transparencies (slide overlay device) or opaque macro objects (macro de- vice).

3clickstop positions of the beamsplitter in the tube:

Switch rod	Observation	Photo
VIS	100 %	0 %
50/50	50 %	50 %
PHOTO	0 %	100 %

Condenser performance data

Condenser 0.30 S70

Without height adjustment, as the fixed focus concept of this condenser guarantees optimal matching of light and phase rings for liquid levels up to 60 mm. FWD (free working distance) 70 mm. For brightfield (HF), phase contrast (PH, Phaco), transmitted light interference contrast (ICT) and polarisation contrast up to 40x ob- jective magnification in each case.

Condensers 0.53 S23 and 0.90 S1

The condenser has a slide changer, height adjustment and centration facility for setting Koehler illumination. The holder holds the base part of the condenser, which can be fitted with condenser tops 0.53 S23, 0.90 S1 or P 1.40 OIL S1 to suit the particular application.

Possible applications of the condensers for the Leica DM IRB
Illumination	Condenser	Diaphragms/	Condenser		Diaphragms/	Condenser		Diaphragms/
technique	0.30 S70 objective	accessories	0.53 S23 objective		accessories	0.90 S1 objective		accessories
Brightfield	2.5x – 40x	–	5x – 100x		–	10x	– 100x ●	–
Phaco	5x	PH 0 S70	5x		PH 0 S23	–		–
	10x, 20x	PH 1 S70	10x, 20x		PH 1 S23	10x, 20x		PH 1 S1
	40x	PH 2 S70	40x, 63x		PH 2 S23	40x, 63x		PH 2 S2
	–	–	100x		PH 3 S23	100x		PH 3 S3
Interference		ICT			ICT			ICT
contrast	10x – 40x	device	10x – 100x		device	10x	– 100x ⮾	device
Pol contrast	2.5x – 40x	Pol device	5x	– 100x	Pol device	10x	– 100x ●	Pol device
Darkfield	–	–	5x	–Ê n. a. 0.40	3 S23	10x	–Ê n. a. 0.75	D S1

⮾100 x for maximum resolution also possible with condenser top P 1.40 OIL S1 Light ring 3 S23 serves as DF diaphragm

●For maximum resolution there is also a condenser top P 1.40 OIL S1

121