Search found 281 matches

by Hardwarezone
Fri Jun 24, 2022 5:00 pm
Forum: Equipment Discussions
Topic: Anywhere/anyone in Singapore to do mirror recoating?
Replies: 2
Views: 94

Re: Anywhere/anyone in Singapore to do mirror recoating?

I don't remember any info on this regarding local Singapore. The machine as seen in photos years ago (other country) and now on youtube , is quite big the size of a washing machine or fridge. it pumps out the air into vaccuum state within the heavy steel container and have a heater below to melt the...
by Hardwarezone
Tue Jun 21, 2022 7:32 pm
Forum: DIY Astronomy
Topic: Tabletop Alt-Az mount concept - incomplete project
Replies: 0
Views: 275

Tabletop Alt-Az mount concept - incomplete project

Post here to share my experience as recently these few weeks there were forumers looking to mount C90 mak and 5inch newt OTA. IMO if can bring down the cost of mount , the lower entry barrier will allow more to join this hobby. Maybe somebody can finish the idea and build something similar. This woo...
by Hardwarezone
Mon Jun 13, 2022 7:54 pm
Forum: Beginners Forums
Topic: Leaving mounts and scopes outside?
Replies: 3
Views: 546

Re: Leaving mounts and scopes outside?

i remember reading in cloudynights forum 8years ago they found the inside of the cover to be wet even when no hole for rain to go in , it's the formation of dew water. It may not happen if you're backed against a wall which cover a substantial part of the skydome compared to 360 degree exposure and ...
by Hardwarezone
Fri May 13, 2022 7:41 pm
Forum: DIY Astronomy
Topic: EVA foam sheet degrade with age
Replies: 0
Views: 2667

EVA foam sheet degrade with age

Just to notify others who may be using the same material as it's cheap $2 dewshade cover for small scope and finderscope. I was moving and cleaning my setup after a few years of inactivity , to my surprise the eva foam sheet flake out tiny particles on my table and fingers , washing and scrubbing do...
by Hardwarezone
Thu Nov 18, 2021 6:29 pm
Forum: General Astronomy
Topic: Tell a newbie
Replies: 2
Views: 4103

Re: Tell a newbie

public library magazine section have about 5-6 issues of astronomy magazine , inside is 50% articles 50% advertisement.
by Hardwarezone
Tue Nov 09, 2021 12:18 am
Forum: Equipment Discussions
Topic: How do you all clean your mirrors?
Replies: 4
Views: 3832

Re: How do you all clean your mirrors?

I don't have newtonian tap water from hose is enough , $1 bottle of distilled water for final rinse if paranoid about mineral in water don't wipe it with microfiber cloth or lens pen , it's not safe because of microscopic scratches when water hose cannot solve , then use bottled distilled water to w...
by Hardwarezone
Fri Nov 05, 2021 12:47 am
Forum: Beginners Forums
Topic: Focal length of scope vs focal length of eyepiece vs brightness of object
Replies: 2
Views: 3489

Re: Focal length of scope vs focal length of eyepiece vs brightness of object

if 2 scopes "same diameter" then same magnification will give you same brightness or "exit pupil diameter" the other factors that can change the "real world effect" 1) mirror may be about 90% in reflectivity fresh from factory and slowly age 1% per year to 80-81% region...
by Hardwarezone
Wed Nov 03, 2021 7:08 pm
Forum: Astronomy FAQs/Articles
Topic: Some good news I guess?
Replies: 3
Views: 4373

Re: Some good news I guess?

i laughed when I saw the news , suggesting night activity in an inauspicious place. Bold idea.
by Hardwarezone
Fri Jan 01, 2021 12:07 pm
Forum: Equipment Discussions
Topic: Opinions on Svbony SV48 as grab & go telescope
Replies: 3
Views: 4592

Re: Opinions on Svbony SV48 as grab & go telescope

According to the chart , 90mm F5.5 is around the same CA as 80mm F/5

Image
by Hardwarezone
Fri Jan 01, 2021 11:53 am
Forum: Beginners Forums
Topic: A newbie looking for recommendation
Replies: 5
Views: 5290

Re: A newbie looking for recommendation

You need to keep the telescope and eyepieces in airtight dry storage too , that will take up more space and $ budget. Having the telescope mounted on the tripod as in display piece at home , only works for other country with dry climate , low humidity in air. 5se and 6se is different at the mount to...