Taken a picture of your focusing mask?

[citivolus]

No, it isn't what you think. Or, maybe it is :rofl:

I'm fairly certain we've all done it. Some of us probably do it more than others. I just did close to an hour of subs on NGC 253, only to look at the subs on the camera and think that I had drift. I then looked over at my scope and noticed the focusing mask in place.

I figured I'd go ahead and process it anyway, as a memento to the occasion.

So I present to you, NGC 253 a la Bahtinov.

10x 5 minute exposures, FLT98 :P

So, who else is guilty and willing to post the evidence?

[mexhunter]

Hi citivolus:
Doubtlessly it is a very original photo. The star striae shine it much; also focus is excellent. :D
Many greetings
Cesar

[Dennis]

Guilty as charged, although I picked up my mistake on the 1st sub frame. I once took a 20 minute, hand guided shot (on 35mm film) of Eta Carina with my old Hartman Mask on….

Cheers

Dennis

[Omaroo]

Once? LOL! For me - every time! That's me - focus and then set a sequence of 10 short subs - go!

D'oh! :doh:

:lol:

[Alchemy]

i did it once but i think i deleted the subs after i realized..... the next day:doh:

[Hagar]

Nice focus on the focus. I have taken some lovely 20 min exposures of a focus mask but they all were deleted.

[Tamtarn]

Have also done this once, but realised what had happened when viewing first 10 min sub.

[RB]

Too funny Ric ! :lol:
At least you have a unique NGC 253 to show off.

I've done a similar thing a few years ago but mine was using the ED80 on the moon.

It was extremely difficult to get the full moon in the fov, let alone focus, until I realised I had left the solar filter on from earlier in the day while doing some solar imaging. :doh:

[TrevorW]

Never (I don't use a focusing mask) :P

nice pic by the way

:thumbsup:

[Omaroo]

Hmmm..... :whistle:

[citivolus]

At least now I'm not the only one :)



Hey, that sounds like something I would to!

Regards,
Eric

[multiweb]

Ouch! :lol:

[renormalised]

How about leaving a lens cap on....done that a couple of times when visually observing. Wondered why the sky was so black!!!.

Well, I can say this about your piccie...they're the most tightly focused stars I've ever seen!!:P:D:D

[RobF]

Actually, you could be on to the start of a fad here Ric. You should shoot a bright cluster like the Pleiades, post a pic, then wait for someone to ask how you get such groovy diffraction spikes...... :D

[strongmanmike]

Hmm? that's just lots of Ant Nebulae (aka Menzel 3) sent to munch on NGC253 http://members.pcug.org.au/~stevec/ant_full.jpg

[renormalised]

Termites:P:P:D:D