Sun in white light, july 27

[htj]

Hi

Yes, another white light image. First for me though.

Single frame. Taken with canon 40D, Megrez 72, Baader sunfilter and a ND filter. Post-processing done in Bibble.

Had a lot of trouble focussing. The LCD screen is pretty must useless in strong sunlight, and the viewfinder just isn't that good.

I'd like to get a bit more surface texture, but don't really want to shell out the money for a dedicated h-alpha or calcium-k scope. Does anyone have experience with the baader continuum filter?

[Steve Ward]

Looks pretty good to me . beats my first attempts hands down....

Have a look here for the comprehensive guide to whitelight imaging...........

http://stargazerslounge.com/topic/153712-simple-white-light-solar-imaging/

Steve.

[Josh Wilson]

Had a lot of trouble focussing. The LCD screen is pretty must useless in strong sunlight, and the viewfinder just isn't that good.

I'd like to get a bit more surface texture, but don't really want to shell out the money for a dedicated h-alpha or calcium-k scope. Does anyone have experience with the baader continuum filter?

Try getting a towel, particularly large and drape it over your head and camera. This blocks out sunlight and lets your eyes see the LCD screen.

I also am wondering about the Solar Continuum Filter so I would like some info on that too.

Clear skies and great observing/imaging, Josh

[Steve Ward]

Doesn't look much but this work really well if I do say so myself...

http://www.astronomyshed.co.uk/forum/viewtopic.php?f=35&t=10037

As for the filters , I use an O III for my solar stuff , not sure how they compare pricewise though but I do get a bit more surface detail with it .

Not used the Baader Cont so can't comment on that.

Steve.

[Bizibilder]

That's a good image - you don't say what exposure or ISO you used?

[htj]

Hi, thanks for the comments.

Exposure was 1/200 with ISO 100. I had to put a neutral density filter (Naader ND 0.9) in there, otherwise everything would just get overexposed.

Steve: Thanks for the link. I might consider an O III filter. (I can't see the astonomyshed link).

Josh: The towel thing sounds simple and useful (though it may look silly). I'll try it out next time.

[Bizibilder]

If you can, reduce the exposure to 1/3200sec or less. With my own 1100D I normally use ISO100 and 1/4000 . If you get the exposure down you will start to see surface granulation etc.

[htj]

I'll try with some shorter exposures next time.

Should also help combat the seeing a bit.

Regarding filters, I stumbled on this one: http://dailysolar.weebly.com/white-light-imaging-with-narrowband-filters.html

Think I see a continum or OIII filter in the my future.

[Bizibilder]

Have a read of this: http://www.schursastrophotography.com/solar/Articles/solararticle3.html before you start spending money on filters - It should help you make a good choice.

[Josh Wilson]

Have a read of this: http://www.schursast...ararticle3.html before you start spending money on filters - It should help you make a good choice.

That is a great site!! Explains why specific filters enhance detail and what filters to use with the Baader Continuum Filter. I know I'll definitely buy the Baader IR/UV filter with the Continuum filter. The pictures are also great and conclusively show you the level of detail you can achieve with the proper equipment.