From: "H P" <hpholcomb@yahoo.com>
Date: November 15, 2009 5:03:01 PM MST
To: Astro_IIDC@yahoogroups.com
Subject: Re: ST3 Pro Exposure calculator...
Milton, Mark,
Thank you, Milton, for your very understandable and concise pro-con analysis. All of it really helped.
Thanks, Mark. I don't need the RAM, but I do appreciate your offer. After I bought my iBook G4, I ordered the 1 GB RAM memory card that I'll use to give me 1.5 GB total RAM with the 512 MB already "on chip." I guess yours only has 256 MB "on chip." I know some iBook G4s did.
I like OWC's in-house memory. Used it to upgrade RAM in several Macs. Never a problem.
BTW, Mark, I'm very satisfied with OS 10.4.11 altho I do have the 10.5 disk.
Thanks to you both, again.
Regards,
Perry
--- In Astro_IIDC@yahoogroups.com, Mark Gaffney <markgaffney@...> wrote:
Hi Perry,
I understand you obtained an iBook G4 at much the same time I did, I
don`t know if it was from the same seller. The reason I`m writing is
that mine came with a small 256 MB memory chip which was stopping me
upgrading to Leopard besides being really slow. Milton heard about
this & very kindly offered me 2 x 512 MB chips as he was upgrading his
MacBook. I`ve installed one of these chips myself using the iFixit
site for instructions (the link to this site was also provided by
Milton!) & my memory has doubled up to 768 MB in tandem with the
original 256 MB chip. I can`t use the 2nd 512 MB chip though from
Milton & I was wondering if you could or would be interested in it.
You can have it for free-it`d be my way of passing on the good will! I
`d just have to get to a post office (which I don`t often do these
days, having other family members pick up my parcels!) & have your
address if you`re interested..
Mark.
On 15/11/2009, at 1:53 AM, H P wrote:
Hey to all,
I read this collection of posts with great interest.
As a result, I want to pose a question. I know the answer is fraught
with the effect of many variables, including from the equipment used
down to the skill and eyesight of the observer!
But please, don't dismiss it because of that. My intentions are
quite honorable!! I have no reason to start a conflict here!
Milton, your tolerance would be most appreciated, since this
question perhaps should be in the autoguiding group or the
macastronomer group.
Just how well can one manually guide with an OAG, as compared to
autoguiding with same,:
a) strictly manually, or
b) manually with software?
Let's limit exposures to 30 minutes or less and have FOVs similar of
those in scopes with less than 7-800mm FL - no cassegrains, please.
I've almost stopped reading the posts on the Stark Labs group
because of all the problems presented by the writers. Gawd, I've
gotten so I don't want to open the daily digest. It's become a forum
of gloom and despair not to mention a significant increase in the
minutiae of technical details. As a neophyte to guiding, I'm not
interested in those.
Aren't most of those from PHD users using PCs and not Macs??? Well,
that's question number two. I've tried several times to get those
posters to put either "PC" or "Mac" in their subject line but to no
avail.
Well, I'm also venting a little here. Please excuse that. However,
your input to the query would be most appreciated.
And thanks,
Perry