Re: [APML] For Wei-Hao :) Will a real astrophoto film please stand up.

[Dominic Cantin <dominiccantin@yahoo.ca>]

Hi Wei-Hao :)

 

Let me know if it's these film that you used ( I scaned these box ) :

 

http://astrosurf.com/aurores/centuria_800.jpg

 

http://astrosurf.com/aurores/centuria_400.jpg 

 

I bought these 2 films this afternoon at a store near my home

 

http://www.japancamera.com/

 

I hope it's the good stuff !

 

Thanks in advance !

 

Dom :) 

Wei-Hao Wang <wang@IfA.Hawaii.Edu> wrote:

> Hi,
>
> Thanks to Bobby for refering to my site. In particular, this one
> is by Centuria 800:
> http://www.ifa.hawaii.edu/~wang/gallery/picutres/I2177-2004.htm
> and these two are by Centuria 400:
> http://www.ifa.hawaii.edu/~wang/gallery/picutres/cygnus_tail.htm
> http://www.ifa.hawaii.edu/~wang/gallery/picutres/m16_to_24.htm
>
> The last two show that Centuria 400 is not only sensitive to H-alpha
> but also has quite good tri-color balance. Bobby is right that 
> Centuria 800 is grainy. Both Centuria 800 and 400 don't have the 
> fat-star problem that E200 has. (Indeed, Provia 400F also has this
> problem.) Earlier I had posted a comparison for E200 and Centuria 800:
> http://www.ifa.hawaii.edu/~wang/misc/E200vsC800.htm
>
> I didn't hyper either of them. I'm not sure if Centuria 800 is really
> faster than 400. (They may have different reciprocity
>  failure.)
>
> The Centuria 400 I used to use is actually called Centuria Super 400.
> It's now replaced by Konica with Centuria Professional 400. The later
> one has quite nice results on comets but its H-alpha sensitivity is
> still unknown. I'm waiting for more test results from my Asian friends.
>
> These Konica films (400, 800) all have 120 format, but only available
> in east Asia. I'm thinking about improting some small amout to US for
> people in this list.
>
> Cheers,
>
> Wei-Hao
>
> ______________________________________________________________________
> Wei-Hao Wang :)
>
> Institute for Astronomy at University of Hawaii
>
> Address: Phone: 808-956-9867 
> 2680 Woodlawn Drive Personal Website:
> Honolulu, HI 96822 http://www.ifa.hawaii.edu/~wang
> ______________________________________________________________________
>
>
>
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---

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