Showing posts with label optics. Show all posts
Showing posts with label optics. Show all posts

Tuesday, April 10, 2012

Nikon 1 SB-N5 Speedlight review


Nikon 1 SB-N5 Speedlight

Nikon 1 SB-N5 Speedlight Angle the  down, left or right and bounce light to precise advantage. The flash  double as a continuous light source illuminating for six seconds during both Motion Snapshot and Smart Photo Selector modes. Nikon 1 SB-N5 Speedlight Extra batteries not required—the camera powers the SB-N5 Speedlight.A very  flash that is made specifically for the Nikon 1 SB-N5 Speedlight as the Nikon 1 J1 has its own pop up built .

 It doesn't require batteries, drawing it's power from the camera battery. The head swivels up to vertical and to either side to bounce the flash either from the ceiling or walls or cards on either side. It is pretty powerful for it size and have been delighted to see some of my night time----indoor shots which normally look terrible look as bright and as softly light as if it were day light outside.

It seems  pretty friendly on the battery life as well, I haven't noticed a significant drop in battery life with the flash as compared to without (I suppose that may change as the battery ages).

This Nikon 1 SB-N5 Speed light for V1 Camera is designed for use with the Nikon V1 CX format mirror-less camera. Exposure modes Fill Flash, Front- and Rear-Curtain sync and slow-sync and flash compensation.

Flash duration is 1/4000 second at full power. A capture illuminator lights for six seconds using Smart Photo Selector and Motion Snapshot modes. Throw Light on Your World .

Angle the flash up, down, left or right and bounce light to precise . Extra batteries not required-the  camera powers the SB-N5 Speed light.
Shed light on your subject. More Expression through Creative Flash Options
Continuous  Option for Long Exposure Needs .

Wednesday, March 7, 2012

new Celestron 52201 Electric

Celestron 52201 Electric
 7x to 21x Electric Ascent
Refractor Optical Programmed, Multi-Coated Optics.
Waterproof and fog substantiation, Move youth - 5.7 mm
Twist-up eyebath, Tripod elastic
Brushed carrying case

This recitation is for Negatron 52201 Exciting Rise 7-21x40 Binoculars. Though' it's not a binocular it's a monocular. As the icon clearly shows. I yield this product 5 out of 5 stars. As a human who is visually broken I feat it to be large! And invaluable. It zooms up to 21X and the ascent is implausible! I'm not careful why anyone would birdsong this a toy. It's rattling sluttish weight, and eliminate for the fact it's a monocular and not a binoculars the description is 100 pct honorable on.

It's actually quit refined yet naïf. The battery is a shut fit, modify certain it is in right per the instructions. If for some faculty the rise doesn't transform, try attractive the assault out and swing it hindmost in again. I can't act to the other one player reexamine, since that individual never really said what was misconduct with it, eliminate to ramble on in an unarticulated speak. Not a toy! Uppercase ZOOM! Impressive. Comes with a carrying occurrence

Sunday, January 15, 2012

Celestron FirstScope Telescope 21024

                                            Celestron  FirstScope Telescope 21024


This telescope is popular among all age groups and astronomy experience levels because it’s so easy to use. Often, bigger telescopes require a complicated setup every time you want to look through them, but the Celestron  FirstScope Telescope 21024 is different. Can’t get a better telescope for the price
Quick to use if you don’t want to haul out a bigger telescope
Great if you think you might be interested in a bigger/more expensive telescope but aren’t sure.

Compared to Other Telescopes…
If you’re looking for an inexpensive, high quality telescope, this is the one to get.
Features of This Telescope.

The telescope has a 76mm aperture reflector optical tube, which is significantly better than the cheap 60mm telescopes you typically find in this price range and will make for clearer, brighter images. One of the best features for someone looking to purchase this telescope is the two-year telescope warranty that Celestron includes with it! Technical Specs of the Celestron FirstScope Telescope 21024.

Telescope focal length: 300 mm (11.81 in)
Telescope focal ratio: 3.95
Eyepiece 1 focal length: 20 mm (0.79 in)
Eyepiece 1 magnification: 15x
Eyepiece 2 focal length: 4 mm (0.16 in)
Eyepiece 2 magnification: 75x

Takes standard 1.25 inch eyepieces
Included with the telescope are two eyepieces, which usually cost around $40-$50 when purchased separately; this makes the telescope a very good deal! Some people preferred the 4 mm eyepiece, while others preferred the 20 mm eyepiece.

For those who wish to upgrade the telescope, a very easy way to do so is to purchase extra eyepieces, which can also be used for bigger telescopes like the NexStar 6 SE when you later upgrade. Any eyepiece 1.25 inches in size should fit. Pros vs Cons of the Celestron 21024 FirstScope Telescope
Bigger than the 60mm telescope typical in this price range, which means brighter images.

You could easily throw away eyepieces and the telescope would still be a great deal, since eyepieces are so easily and cheaply replaced, but a high-quality telescope is harder to get.

Any extra lenses you do purchase can be used on other telescopes
Jupiter and its moons are easy to see with this telescope
Celestron FirstScope Telescope 21024 Review Summary

This telescope earned an excellent average review on Amazon: 4 out of 5 stars, from over 50 reviews. Here is a brief sampling of some of the comments customers have made about the Celestron 21024 FirstScope Telescope.

I am very pleased with my experience with this telescope and the price is great.”
“It was a great purchase. “I highly recommend this telescope if you or your kids have even a passing interest in astronomy.”

Purchasing a Celestron 21024 FirstScope Telescope
After some scouting around the internet, we’ve found the lowest price possible on this telescope. Don’t delay, visit Amazon.com for more information, reviews, and the latest price on the Celestron FirstScope Telescope 21024.
The Celestron 2104 Firstscope is a Dobsonian style telescope that featuring a 76 mm aperture reflector optical tube.

 
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