Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  1 Per  ·  10 Per  ·  11 Per  ·  15 eta Per  ·  18 tau Per  ·  23 gam Per  ·  3 Per  ·  36 psi Cas  ·  4 g Per  ·  43 Cas  ·  44 Cas  ·  45 eps Cas  ·  46 ome Cas  ·  5 Per  ·  52 Cas  ·  53 Cas  ·  55 Cas  ·  6 Per  ·  63 And  ·  64 And  ·  65 And  ·  66 And  ·  7 chi Per  ·  8 Per  ·  9 i Per  ·  B201  ·  Double cluster  ·  IC 166  ·  IC 1747  ·  IC 1795  ·  And 69 more.
Heart & Soul Nebulae / Persei Cluster (50mm), star-watcher.ch
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Heart & Soul Nebulae / Persei Cluster (50mm)

Heart & Soul Nebulae / Persei Cluster (50mm), star-watcher.ch
Powered byPixInsight

Heart & Soul Nebulae / Persei Cluster (50mm)

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Description

50mm @ f/5.6

I wanted to find out the best f-value for the Canon EF 50mm f/1.4 and how far I can go with the

exposure time.

My previous 2 images taken with this lens at f/2 showed much coma/distortion especially in the corners. Also the CAs were very strong:



So, the CA's are still visible until f/4.5. At f/5.0 they're almost gone. Stopped down to f/5.6, and everything is perfect. No distortion, no CA's and no vignetting.

360 seconds, on every sub pin point stars :-) But very noisy darks...

See my 280mm image of the Soul Nebula IC 1848 here.

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  • Heart & Soul Nebulae / Persei Cluster (50mm), star-watcher.ch
    Original
  • Final
    Heart & Soul Nebulae / Persei Cluster (50mm), star-watcher.ch
    B

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Heart & Soul Nebulae / Persei Cluster (50mm), star-watcher.ch

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