Mamiya C330f Professional Reparaturanleitung PDF herunterladen (Seite 46)

Mamiya TLR Summary 46

10.9 Hyperfocal Distance Table

Hyperfocal Distance Table, for a Circle of Confusion of 0.04578mm. Values given in Feet and Inches. Note that not all

combinations of apertures and focal lengths are possible with the lenses available. The zone of acceptable sharpness

commences at approximately half the Hyperfocal Distance. So for the 250mm at f64 focused at 70’ 2", the zone starts at

about 35'. As with depth of field, what constitutes 'sharp' varies between individuals. As was noted in the introduction to the

Depth of Field tables, diffraction may be significant at the smallest apertures. The camera cannot be set to this precision!

Ft 55 65 80 105 135 180 250

2.8

- - 164' 3”--- -

3.5

- 86’ 9” 131’ 5” 226’ 4” - - -

- 75’ 11” 115’ 198’ 1” - - -

4.5

48’ 4” 67’ 6” 102’ 2” 176’ 1” 291’ 517’ 4” -

5.6

38’ 10” 54’ 3” 82’ 1” 141’ 6” 233’ 10” 415’ 9” 801’ 11”

6.3

34’ 6” 48’ 2” 73’ 125’ 9” 207’ 10” 369’ 6” 712’ 10”

27’ 2” 37’ 11” 57’ 6” 99’ 163’ 8” 291’ 561’ 4”

19‘ 9” 27’ 7” 41’ 10” 72’ 119’ 1” 211’ 8” 408’ 3”

13’ 7” 19’ 28‘ 9” 49’ 6” 81’ 10” 145’ 6” 280’ 8”

9’ 11” 13’ 10” 20’ 11” 36’ 59’ 6” 105’ 10” 204’ 2”

- - - 24’ 9” 40’ 11” 72’ 9” 140’ 4”

- - - - 29’ 1” 51’ 9” 99’ 10”

------70’ 2”

11 User hints

11.0 Introduction

This section is for personal experiences, and any miscellaneous items not noted elsewhere.

11.1 Weight

The earlier models are heavy when compared to other 6x6 cm interchangeable lens cameras. However, comparing a typical

3-lens system shows a slightly different story:

Table of system weights, typical 3 lens system

Lens YashicaMat

(non-

metered)

Bronica

SQA

Hass.CF Mamiya 6 C33 C220 C330 C330s

50-60 - *590 *680 +335 360 360 360 360

75-90 (fixed) *490 *510 +250 365 365 365 365

150-

180

- *865 *1075 +480 640 640 640 640

Body 1105 *1010 *990 +890 1810 1150 1465 *1340

Total 1105 *2955 *3255 +1955 3175 2515 2830 2705

Weights are in grams. This is only a rough comparison. There are differences in maximum apertures, and the focal lengths

are not exact matches. However, it suggests that there is little practical difference between the reflex models for a similar kit.

The Mamiya 6 is a rangefinder model, the Bronica SQA and Hasselblad CF are single lens reflexes, and the YashicaMat is a

fixed 80mm TLR. All are 6x6 cm format. * Estimated weight from published data. + Manufacturer's published data.

11.2 Lens caps

Rear lens caps are particularly hard to find, and substitutes even rarer. It may be worth contacting your national Mamiya

representative directly, as there are some still available. The rear caps for the black series lenses are oblong with radiused

ends. The inside of one end has a full circular rim that fits around a rear lens element. Two sizes are known:-

38.4mm diameter, 6mm deep (Long)

Fits 250mm, 180mm, and 135mm black series.

31mm diameter, 6mm deep (Standard)

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