Nikon F/41F instruction manual Prime Lens Only With 2X Close-Up Attachment Lens

• Prime Lens Only

• With 2X Close-Up Attachment Lens

Reproduc-	Focused	m	Depth of field
tion ratio	distance	(ft)	mm (in.)
1/11X	1.6		+ 25.4 ! + 1.0001
	(5.25)		-24.4	- 0.961
1/8X	1.2		+17.9!+0.7051
	(3.94)		-17.3	-0.681
1/6X	0.95		+ 13.2! +0.5201
	(3.12)		- 12.7	- 0.500
1/5X	0.83		+10.8!+0.425 1
	(2.72)		-10.5	-0.413
1/4X	0.7		+8.45!+0.3331
	(2.3)		- 8.15	- 0.321
1/3X	0.6		+6.18 (+0.243)
	(1.97)		-5 .97 (-0.235)
1/2.5 X	0.53		+4.99 (+0.196)
	(1.74)		-4.81 (- 0.189)
1/2X	0.47		+3.85 !+0.1521
	(1.54)		-3.71	-0.146
1/1.5X	0.4		+2.74!+0.108)
	(1.31 )		-2 .64	-0.104)
1/1.2X	0.37		+2.07!+0.081 1
	(1.21 )		- 1.99	-0.078
1X	0.35		+1.63!+0.0641
	(1.15)		-1.56	-0.061

Note :

Subject field mm (in.)

264 x 396

(10.40 x 15.59)

192 x 288

(7.56 x 11.34)

144x216

(5.67 x 8.50)

120x180

(4.72 x 7.09)

96 x 144

(3.78 x 5.67)

72 x 108

(2.83 x 4.25)

60 x 90

(2.36 x 3.54)

48 x 72

(1.89 x 2.83)

36 x 54

(1.42 x 2.13)

28.8x 43.2

(1.13 x 1.70)

24 x 36

(0.94 x 1.42)

Reproduc- tion ratio

0.8X

0.85X

0.9X

0.95X

1X

1.1X

1.2X

1.3X

1.5 X

1.8X

2X

Focused m distance (ft.)

0.33

(1.08)

0.325

(1.07 )

0.32

(1.05)

0.315

(1.03)

0.31

(1.02)

0.30

(0.98)

0.29

(0.95)

0.285

(0.94)

0.275

(0.90)

0.27

(0.89)

0.26

(0.85)

Depth of field

mm(in.)

+2.47!+ 0.0971

-2.35 - 0.093

+2.21 (+0.087)

-2.11 (- 0.083)

+1.95 (+0.077)

-1.88 (- 0.074)

+1.78 (+ 0.0701

-1.71 (- 0.067

+1.55 i+ 0.061 1

-1.50 - 0.059

+1.28 (+ 0.050)

-1.23 (- 0 .048)

+1.10 !+0.0431

-1.06 -0.042

+0.90 !+ 0.0351

-0.86 - 0.034

+0.67!+0.026 1

-0.65 - 0.026

+0.521+ 0.020 1

-0.50 - 0.020

+0.41 (+0.0161 - 0.40 (-0.016

Subject field mm (in.)

30 x 45

(1.18 x 1.77)

28.2x 42.4

(1.11 x 1.67)

26.7x 40

(1.05 x 1.57)

25.3x 37.9

(1.00 x 1.49)

24 x 36

(0.94 x 1.42)

21.8x 32.7

(0.86 x 1.29)

20 x 30

(0.79 x 1.18)

18.5x 27.7

(0.73 x 1.09)

16 x 24

(0.63 x 0.94)

13.3x 20

(0.52 x 0.79)

12 x 18

(0.47 x 0.71)

+indicates rear (farther) depth.

-indicates front (nearer) depth.

Focused distance means distance between subject and film surface. Circle of confusio n for the Medical-Nikkor 120mm f/4 IF is 1/20mm.

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