Bonjour, Comme vous le savez certainement, la souscription pour le nouveau spectrographe Lhires III a démarré il y a deux semaines. Il est temps de faire un...
What is the maximum width of detector which can be used? For example will a DSLR produce a good spectrum across the whole width of the CCD? Thanks Robin...
Bonjour, Une requete pas tres banale sur cette liste, mais si qq avait le spectre d'une lampe genre flash photo entre 400 et 900 nm, ca serait super. Merci...
Hello Robin, Not easy to calculate this. Attached is one sample of a solar spectrum (30sec exposure wih a EOS300D Cano Digital Revel SLR) around 5100A. I ...
Hi all, The width is limited by the doublet optical aberrations. Spot diagram analysis shows a valuable linear field of only 8 to 10 mm. Some degradation and...
Observations récentes faite avec LHIRES III (le proto) : http://www.astrosurf.org/buil/lhires_tutorial1/reduc.htm C'est en fait un petit tutorial (il y en...
While I assume extra gratings for the Lhires III can be purchased at any time from Edmund or Optometrics, will it be possible to order extra grating supports...
somebody can help me when I try to see the conference it said no sound what kind of soft do you used for reading jacj 47'N 71'O ... forward ... spectroscopy...
Hi Bernard, I believe it all depends on whether the group can identify a manufacturer willing to do any additional production runs, or whether a start-up...
somebody can help me when I try to see the conference it said no sound what kind of soft do you used for reading jacj 47'N 71'O ... forward ... spectroscopy...
Stephen, Probably very good advice to order now. While I do have a small mill and lathe the machine drawings are not yet on the website (I couldn't find them),...
Hello Bernard, You are right, one can order additional gratings easily from Optometrics anytime. For the supports, we do not plan to make them available but as...
Hi Bernard, Re: the neon lamp holder, you are indeed correct. The kharki coloured rod in the drawing supports a silver coloured lamp holder, which can swing up...
The LHIRES website mentions guiding using the light from target star which overlaps the slit "An algorithm has been developed for guiding on the halo (blurred)...
Hi Robin, I believe this is still work in progress, and something that Christian is developing, so I'll leave it to him (or Olivier) to respond. To my...
Bonjour a tous, Le spectro Lhires III arrive ... Et il y a peut-etre des gens interesses par une camera pour le suivi. Il y a la WATEC WAT-120N ... Chez...
Hello, Within IRIS software, Christian developped the technic of guiding on a star which is actually within the slit (so the guiding purpose is to keep the...
A good opportunity... Ce produit reste cher, même au prix de Astrocom que tu nous à trouvé là Jean-Francois (c'est une fraction non négligeable du coût...
I agree with Olivier. I think that much information will circulate in connection with Lhires (tutorial, procedure, softwares, ...). Concerning the guidance...
Hello all, Sorry for the late reply... Of course, you're right with the different points from Bernard's questions (grating supports and neon). I just want to...
La watec 120N version US (donc en ntsc) coute dans les 750 $US. en france, je n'ai pas trouvé de revendeur de ce modèle en particulier. J'ai une watec 902H2...
I hope to use my 1004x-JG camera (like the SAC8 Much more sensitive than a modified webcam, more like a Mintron 12V-EX and it can be built for 150 Euro. I...
Dans un e-mail daté du 15/12/05 21:26:00 Paris, Madrid, francois.cochard@... a écrit : - Si vous débutez en spectro, contentez-vous d'une webcam (que...
