Telescopes.com (zhumell 1.25in. Eyepiece And Filter Kit)
Monday, December 7th, 2009 at
10:38 pm
The Zhumell eyepiece and filter kit is a great way to make the most of your telescope! Zhumell kits include a selection of eyepieces and filters that optimize available light. This, in turn, allows...
US $.01
thanks Galileo! lol
Rating: 0 Posted By: rts Views: 3 Replies: 0 I was looking for some basic moon filter, 2x Barow and couple of eye pieces (32mm etc.) and found that they are selling the entire kit with almost all eyepiece and filter combos for 100 bucks! A great value for any telescope owner. I’m sure, if I buy these things separately, I’ll have to shell out 300+ bucks (not that I will actually do that). You can use it with smaller telescopes like the Celestron Firstscope on Fatwallet few days back .. all the way to much bigger professional ones. Zhumell is a pretty solid company and has gotten a good reputation in the astronomy forms …Here are the details:The Zhumell 1.25 Inch Eyepiece-and-Filter Kit includes:- 4mm high-grade eyepiece- 6mm high-grade eyepiece- 12.5mm high-grade eyepiece- 32mm high-grade eyepiece- 2x Achromatic Barow Lens- #12 Yellow filter- #21 Orange filter- #23A Light Red filter- #56 Green filter- #82A Light Blue filter- Polarizing filters- Chrystalview Moon filter-…
http://www.astronomy.com/asy/default.aspx?c=hp&id=3
Stacking filters is usually not a problem unless you are using a very wide angle lens – then you may experience "vignetting" which is a darkening at the corners of the frame. However, stacking filters has the potential to cause glare and/or reflections since the elements are separated. IMO you'd be wise to avoid stacking filters unless absolutely necessary.
A circular polarizer is used to darken a blue sky and to remove glare/reflections from water, sand, glass, snow and painted metal – but not polished metal. One should be in every photographer's camera bag.
A Neutral Density (ND) filter is used to reduce the amount of light admitted by the lens without affecting color. Its original use was with film cameras when the ISO of the film was too fast to achieve certain effects. A film photographer who loaded ISO 400 film might want to shoot a waterfall and blur the water but find that even at f16 or f22 the shutter speed was still too high. He'd then use an ND filter to reduce the amount of light and lower the shutter speed to get the results he wanted.
Although the digital photograher can easily change his ISO setting, in some situations he may find that even the lowest ISO and smallest f-stop will not give the results wanted. Then an ND filter is needed – just like the film photograher previously mentioned.
A circular polarizer can act as an ND filter since it usually reduces the light by 1 to 2 stops.
Always buy quality filters – Heliopan, B+W, Singh-Ray, Tiffen, Hoya are all good brands.
Every lens you own should have a Skylight or Haze/UV filter mounted to protect the front element of the lens.
You can find out everything you'd want to know about ND filters on wikipedia.
KIT M9X125 – $30.87: Thread Repair Kit M9 x 125in.Features and Benefits:Thread size and length: M9 x 1.25 x …
KIT M8X125 – $24.44: Thread Repair Kit M8 x 125in.Features and Benefits:Contains Heli-Coil installation tool…
The Zhumell Commodore Brass Telescope not only offers amazing views of the heavens but it makes a stylish accent piece for any office den or living room as well. This nautical-style refractor telescope features a brass body a copper-arc altazimuth mount and focuser and a rich and durable mahogany tripod. With crystalline optical clarity 40x -80x magnification and 1000mm focal length this stately scope is ideal for both stargazing and long-distance terrestrial viewing. The Zhumell Commodore Brass telescope is sure to make a classic elegant statement anywhere it’s placed.
tags: birds, mystery bird, bird ID quiz
[Mystery bird] photographed at Brazos Bend State Park, Needville, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 27 December 2009 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/500s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
Read the rest of this post… | Read the comments on this post…
Also check out the featured ScienceBlog of the week: Bioephemera
That's too bad. I have two scopes, a reflector and a Mak-Cassegrain, neither of which have the go-to feature. Sorry. I'm trying to sell them both.
Nikon lens are not only cheaper but better quality. And it doesnt matter on the camera, it matters on the photographer…. even though Nikons better lol
They’re amazing…hope they come to Dallas again sometime soon!
the burnout sounds sooo sick
i would like to get in to doing this but dont know where to begin . i want a telescope that is good for solar system veiwing and out side the solar system plus i want to be able to take pics of what im looking at . im not wanting to spend alot of money though can any one help ??
Yeah those things are damn near bullet proof
I doesn't seem like these are made to produce bubbles – if they were, they would have a piece of airline tubing that would sit above the surface.
I wouldn't worry about there not being bubbles – this isn't how the dissolved oxygen gets into your water anyway – it's just a visual effect. More oxygen gets into the water (and CO2 leaves it) by surface agitation. So that's how deep you should put the filter – only as deep as you can see "ripples" across the top of the water. Once you stop seeing the ripple effect, the amount of dissolved oxygen will decrease.
http://www.thatpetplace.com/pet/prod/214819/product.web?utm_source=none&utm_medium=cpc&utm_term=inktomi_filler
From a friend on the eyepiece crew: Jakes just kicked out members of the national guard tonight because they were in uniform. #iowacity
Samsung Refrigerators – Press and Hold the Ice Type and Child Lock Buttons at the same time for 3 seconds.
they have such a 70’s disco sound. its amazing.
I have an older Celestron 8" Schmidt. At F/10 rather than F12-15 for Maks, you'll get a larger field of view with same eyepiece
Wolf Creek: Open / Past 48 Hours: 5in. / Primary: Powder / Base Depth: 125in.
they are great!
When I put my eye all the up to the viewfinder eyepiece, I still can’t see everything. I have to move my head around to see all the edges
I have a filter that has 3 different baggies with different things in them to help clean the water.
i replace all of them every time i clean the fish tank ( every 3 months)
if you dont have a very good filter, clean it every month
How much does this telescope cost?
Filters are to be replaced at the least every other month. It really depends on the area you live in. The type of filter you use makes a difference also.
If air cant travel through it due to the millions of dust bunnies and particles that have been trapped…then its time to change it.
Be careful with the pleated filters. They come in different densities so be careful not to get one of those 1200 's which is very dense.
True the higher the number the more particles it will catch. but at what price ?
Try this : while the furnace is operating take note of the sound of the air movement. if when you remove the filter (if possible without having to leave the cover off) there's a significant release of air pressure, then the filter is too dense. This will reduce the efficiency of your furnace, and also reduce the life of the motor. This is because the dense filter is causing the motor to overwork. This is to the equivalent of having a dirty filter, where the air is restricted.
Its a little technical and cost a bit , but there are meters that measure air flow or CFM's. Fluke puts out one. I think they are about $ 300.00
Also be careful of those cheap blue filters that allow too much to travel through. this will fill your ducts with dust and dirt. If you have central air the dust and dirt will get caught in the coils and soon not perform at its best , because the coils have become your filter and trap the dirt that the filter misses.
Or cause you to have to have duct cleaning. So I suggest not going to the extreme either way. If you use pleated, try one thats rated at 600. If a different rating is used with pleated u can go the lowest number . It should suffice.
One day. – I will set my eye on the eyepiece of an EOS 1D series camera… One day. But for now, back to life.
What Makes the Zhumell Z8 Telescope So Great?
Dear Alex Scoble, I don’t know nothin’ about no 5D’s but I do know that you are supposed to be putting the laptop down and enjoying Burn Notice. It is really for your own good.
i’m glad that wasn’t a BLATANT advertisement
Fuck me, i lost my eyepiece
Assumption ; by a "20 cm primary mirror" you are talking about a mirror 20 cm in diameter.
The magnification is equal to the primary focal length divided by the eyepiece focal length.
To find the primary focal length, multiply the primary diameter by the f number.
Primary fl = 200 mm * 5 =1000mm
( 20cm = 200mm)
Mag = Primary fl / Eyepiece fl
rearranging:
Eyepiece fl = Primary fl / Mag
Eyepiece fl = 1000mm / 100 = 10mm
eyepiece sayangg. bukan earpiece. u blind eh? lol
so im listening to owlcity♥ ~All those rather dreary rain clouds still bother me Cuz I look through the camera eyepiece and cannot see~
Comments
It's 44.8°F, Hum 42%, Baro 30.125in. Steady, Wind is 13.0 mph N, today's high gust was 29.0 mph and 0.01 inches of rain so far today.
I always set “new window opens in tab” in my browsers. Seems to be the default in my Chrome.
The thermostat is keeping up with the "run time" so the other answer is on the right track but forgot to put in a multiplier to correct for average run time. I use 60% when I set filter timers
30 days X 24 hours=720X .6 (60%) =432 hours
dirt and rocks. pipe fall. bliss. bibbles laugh is like a flock of geese careening into a kaleidascope sunset.
Buy Cheap: Celestron 93230 8 to 24mm 1.25 Zoom Eyepiece
The beam can weigh only 150g, 1/3 of a pound and has to support 200 pounds? that is difficult.
24 inches long but supported where? on each end?
"held together by glue" ? what is held together? Can't you make it out of one piece of wood?
basswood is 27 pounds per cubic foot. 1/3 pound is 21 cubic inches.
with a length of 24 inches, that is a cross section of 0.9 square inch.
For max strength, I'd cut it 0.5 inch by 1.8 inch. and set it on end.
This link has lots of properties of this wood.
http://www.hardwoodinfo.com/species_guide/brochure_44-45.pdf
Everyone hated HMOs, and now we’ve got a Government HMO (it’s called a “Medical Home” in the bill) that forces everyone to see a primary doc first for everything. No direct access to specialist. That primary Dr is graded/measured/paid on how well they restrict care (just like the old HMOs we all decried).
You miss read the label, it told you to take the carbon out not the filter pad. Sometimes filter pads with carbon in them don't have a way to open them without destroying them and sometimes you can. If no you should destroy one and just put the pad back in. The cloudiness however is most likely the biological filter recycling because you removed the main place where it was besides the gravel and the meds killing off the biological filter. Assuming you have a good sized tank and it was fully cycled the gravel should have enough bio filter in it to make it not have much of an effect. The current makes no difference without the pad. Its not going to hurt or help the fish unless you have a filter that's way to big for your tank or you have fish that prefer slow or still moving water. If this is the case that's only gonna add to the stress. Good Luck with your treatment, here's a good site you should read on ick, it gives you alternative treatment options (salt) which is just as effective as meds, cheaper and wont kill your biological filter.
http://www.badmanstropicalfish.com/forum/index.php?PHPSESSID=7aefab613a0d0742de18456fe2d17673&/topic,1285.0.html
tags: birds, mystery bird, bird ID quiz
[Mystery bird] photographed in Brazoria National Wildlife Refuge, Angelton, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 23 March 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/250s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
Read the rest of this post… | Read the comments on this post…
Also check out the featured ScienceBlog of the week: Obesity Panacea
depends on the telescope. depends on what you want. what *do* you want? what kind of telescope do you have?
telescopes with fast f ratios need fancy eyepieces to give the best results. telescopes with high optical quality can use high optical quality eyepieces. slow scopes can give decent images with just about anything.
later: a little bird told me you have a 6" orion starblast (good scope, btw). in that case buy some plossls, which are good workhorse eyepieces on any telescope. radians are nice, and are also good workhorse eyepieces with oodles of eye relief. just a bit pricier.
an ethos eyepiece would be a waste of money on such a telescope. i own telescopes where it would not be, but we're not talking low-cost entry-level scopes here.
What kind of guitar is Richard playing?