Flat Field Objectives

						Suggested List Price
catalog no.      	description.            1-4  		5 or more

Achromats

31-12-20     	       2.5X       0.06 NA   	 75.00		 67.50
31-12-21      		 4X       0.09 NA    	 43.00		 38.70
31-12-22     		10X       0.25 NA   	 43.00		 38.70
31-10-61      		20X       0.50 NA  	 61.00		 54.90
31-12-24     		40X       0.65 NA 	 69.00		 62.10
31-12-26-02   	       100X       1.25 NA    	119.00		107.10

Apochromats

31-11-50      	       7.5X       0.20 NA 	170.00 		153.00
31-11-51      	      12.5X       0.30 NA   	200.00 		180.00
31-11-52     		25X       0.65 NA    	300.00 		270.00

Phase Contrast

31-10-51      		10X       0.25 NA  	 90.00 		 81.00
31-10-52      		20X       0,50 NA 	143.00 		128.70
31-10-53		40X       0.65 NA	143.00 		128.70
31-10-54-02  	       100X       1.25 NA    	223.00 		200.70

Nosepieces

31-10-51      		10X       0.25 NA  	90.00 		81.00
31-18-65      		Double         		28.00  		25.20
31-18-66      		Triple         		36.00 		32.40
31-18-67      		Quadruple      		44.00 		39.60
31-18-68      		Quintuple            	59.00 		53.10
31-18-71      		Adapter for reversing
			31-18-68 Nosepiece 	10.00 		 9.00

Eyepieces

31-10-51      		10X       0.25 NA  	90.00 		 81.00

Wide Field

31-10-51      		10X       0.25 NA  	90.00 		 81.00
31-15-61        	10X        single    	29.00     	 26.10
31-15-61-02    		10X        paired 	58.00      	 52.20
31-15-62       		15X        single   	39.00     	 35.10
31-15-62-02     	15X        paired 	78.00     	 70.20

Huygenian

31-10-51      		  10X     0.25 NA  	90.00 		 81.00
31-15-07       		 7.5X      single   	16.00      	 14.40
31-15-07-02    		 7.5X      paired    	32.00     	 28.80
31-15-08      		   5X      single     	16.00      	 14.40
31-15-08-02    		   5X      paired    	32.00  		 28.80
31-15-09       		  10X      single   	16.00      	 14.40
31-15-09-02     	  10X      paired     	32.00      	 28.80
31-15-12       		12.5X      single   	20.00      	 18.00
31-15-12-02     	12.5X      paired   	40.00     	 36.00
31-15-15       		  15X      single     	21.00      	 18.90
31-15-15-02     	  15X      paired      	42.00      	 37.80

Eyeguards

31-10-51      		  10X     0.25 NA  	 90.00 		 81.00
31-50-20       		Eyeguard for 31-15-61 	1.00        	  .90
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