Fig. 3.35. Spot-diagrams for the "short" Maksutov telescope of Table 3.11 with aperture 400mm and f/3.0

Fig. 3.36. Effect of stop shift on transverse chromatic aberration C2 in a Mak-sutov meniscus: the "short" version (b) causes refraction and dispersion of the principal ray at the first surface, but the effect is largely (though not entirely) compensated at the second surface

Table 3.12. Data for the "short" Maksutov system (D = 400 mm and f/3.0) optimized with an additional achromatic field flattener, giving the results of Fig. 3.37





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