M 31 - test with Sonnar 4/300 ("Zebra") (Lars Stephan)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 35 nu. And · Andromeda galaxy · Great Nebula in Andromeda · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224 · The star νAnd

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M 31 - test with Sonnar 4/300 ("Zebra")

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M 31 - test with Sonnar 4/300 ("Zebra")

R: 58 x 40 s

G: 50 x 40 s

B: 50 x 40 s

In 1963, the 35mm image - Sonnar 4/300 was recalculated for the medium format 6 x 6. It was made with the so-called zebra version. Because of the disproportionately high production costs for the glass used, it was later replaced by a design that was cheaper to manufacture - the MC Sonnar 4/300. This has not reached the optical performance of its predecessor.

Original
B
Final
C

C

Description: blue halos reduced

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Status	Advanced success
Started	...
PixInsight job	WJEY4BQG1GMBK8QFZDI61USTSK3FGPDZ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h42m17s.76
RA (top/left)	00h49m20s.71
RA (top/right)	00h31m41s.97
RA (bottom/right)	00h35m36s.16
RA (bottom/left)	00h52m39s.62

Dec (center)	+41°10′56″.4
Dec (top/left)	+42°50′39″.1
Dec (top/right)	+41°54′49″.7
Dec (bottom/right)	+39°29′45″.6
Dec (bottom/left)	+40°23′28″.2

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M 31 - test with Sonnar 4/300 ("Zebra")

M 31 - test with Sonnar 4/300 ("Zebra")

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Contribution Index (beta):

M 31 - test with Sonnar 4/300 ("Zebra")

M 31 - test with Sonnar 4/300 ("Zebra")

Equipment

Acquisition details

Description

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Revisions

C

Sky plot

Histogram

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