North Lincs astro meeting . Monday 7th March 2016

orion

The North Lincolnshire astronomy society was greeted by clear skies in the first time in what seemed an eternity. Around 24 turned up which included 2 first timers. Our scheduled speaker Chris was unable to be in attendance, so Steve Berry stepped in to give a talk on how to work out the photographic field of view for a few examples of telescope / camera combinations with computer software. Thank you to Craig for stepping in to rectify some PC gremlins.

As always thank you to Sarah for the refreshments and the Lincolnshire wildlife trust for the use of their premises.

Afterwards we got some delightful views of Jupiter and the Orion Nebula through a Skywatcher ST80 and 12″ flex-tube Dobsonian. Thank you to Paul and James for allowing us to look through their telescopes.

For more information on the North Lincs Astro society, click HERE

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Male Reed Bunting. Waters` Edge country park. 6th February 2016

reed bunting 6.3.16b

While on a walk near the Waters` Edge visitor centre on a chilly February morning I saw this delightful Male Reed Bunting.

As he was heavily back lit, I quickly added one stop to exposure compensation. Canon EOS 1100d + Tamrom 70-300mm lens. f8 at 400ISO

Was very happy with the focus. By using RAW files I was able to bring out detail in the shaded part of the bird. Was quite happy for me to take a number of photos. This was my favourite

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Marsh Harrier. Far Ings nature reserve 6th February 2016

marsh harrier 6.3.16b

On a cool Feb Morning at the main Ness End hide at Far Ings reserve at Barton Upon Humber , we were for some time being teased by a Marsh Harrier on patrol, but on the far side of the pond.

Then luckily it decided to have a change of route and headed straight for us. It was a swift and brief encounter that allowed those of us in the hide to get a few shots . Lighting was not too bad, allowing 3200th second at f5.6 @ 400ISO. Camera used , Caonon EOS 1100d + Tamron 70-300mm lens @ 300mm

Image to the right was one of three that got good results

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Ostara 4mm Plossl eyepiece 1.25″

ostara_4mm_eyepiece_northern_optics

The Ostara 1.25″ 4mm plossl eyepiece nicely bridges the gap between budget kelner , modified achromatic etc eyepieces and higher grade (and cost) multi-coated and fully multi-coated plossls.

The Ostara version has a solid metal black / chrome  finish. Complete with lens caps and threaded to accept standard thread 1.25″ filters. The 4mm focal length will give a high power with most telescopes, so please check the power this eyepiece gives will not push the limits of your telescope beyond its capability.

To work out the magnification you simply divide the focal length of the telescope by 4(mm). So for example a Celestron Astromaster 130 with a focal length of 650mm will achieve 162.5x..This will be on the limit of what you can realistically use with this telescope.

Eye relief is short with this eyepiece, and the aperture is very small. So we do not recommend for use with spectacles on

The Ostara range of telescope eyepieces and accessories are becoming a popular  brand among the astronomy community. The basic plossl range are excellent value for money.

Click HERE to buy from Northern Optics. If you are unsure if a 4mm focal length eyepiece is suitable for your telescope, please contact us for advice

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How much power can you use with a small telescope

skywatcher_planetary_ UWA_eyepiece_northernoptics

Many customers ask what is the highest power they can use with a telescope..Sadly some shops on line and high street etc do offer small telescopes with unrealistic magnifications of 500+. This will make the image totally unusable and make the unlucky buyer lose interest in astronomy very quickly.

For most small telescopes up to £100 I would recommend 2 or 3 eyepieces with powers in the 20x , 50x and 100x range. This will give a sensible choice of magnifications for a variety of uses from wide field star clusters to looking at the Moons around Saturn. Image shows the Skywatcher SWA Planetary eyepieces

Many (but not all) budget telescopes come with Kelner, Ramsdon, Modified achromatic eyepieces as standard. I would recommend upgrading to a set of plossls if budget allows.

Ostara plossl eyepieces can be purchased HERE from Northern Optics

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North Lincs Astro meeting . February 2016

heritage 100

For the North Lincolnshire astronomy society meeting on Monday 1st Feb 2016 we had a workshop evening, with 3 different demonstrations going on at the same time. This gave the members a chance to mingle and chat at their own leisure while picking up some tips at the same time.

The workshops included telescope collimation by Paul Cotton, setting up and balancing a mount by Steve Berry and polar alignment by Charles Thody

These workshops have been popular in the past, and I,m sure they will be used again in the future

For details on the North Lincs astro society visit their website HERE

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Helios Rapide 8×32 binoculars review

helios_rapide_8x32_binoculars_northern_optics

The Helios Rapide 8×32 binoculars come with some impressive specs for a sub £50 set of binoculars, including open hinged body, nitrogen gas filled and multi-coated optics.

They come in an attractive and strong outer box showing the binoculars. Opening up the box, you are greeted by a very stylish semi-soft nylon case. This has no strap, but does have a belt loop.

Take the binoculars out the case, and the first thing you will notice is the lack of lens caps. To many people this is not an issue, but thought I,d mention it..Despite weighing just 450g they feel extremely solid and well built.

After twisting the eye cups out, I had my first look through them. False colour in the centre of the view is quite minimal..Colours are very clear and sharp with a lack on internal reflection aiding contrast .With these having BK7 prisms, they are not as crisp as 32mm binoculars with phase corrected BaK-4 prisms , but saying that they are £49 binoculars, not £149

Close focus is 4.5m metres, so bare this in mind if you are doing close up work. As always, I like to test with glasses on. With the eye cups twisted down, I found I could get the full view. Eye relief is 14mm

So summing up, if these were £150 binoculars, I would be critical of 4.5m close focus. But as they are £49 binoculars, I would say they are excellent value for money waterproof binoculars (I tested in cloudy conditions) for a sub £50 set of binoculars, Build quality and specs are as good as they come

Click HERE to purchase from Northern Optics

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Ostara comfort binocular strap long version

 

ostara-comfort-binocular-strap-x28-long-version-northern-optics

At approx 122cm long this strap is slightly longer than our standard version The Ostara comfort strap is an ideal replacement strap that is of a much higher standard than many nylon straps

Helps make long observing sessions much more comfortable

Buy here Ostara comfort binocular strap long version.

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Image of M35 and NGC 2158 taken with a Celestron Travelscope-70

m35 10.02.16a

This lovely image of M35 and NGC 2158 was taken with a Celestron Travelscope-70 and a Canon 1100D at prime focus on a Skywatcher HEQ5 mount.

Single 8 second exposure at 6400 ISO. The RAW file was sharpened and adjusted in Digital photo professional to reduce the orange sky glow.

As always, we recommend using live view for focus..For such a basic telescope, we were very happy with the colours brought out in the stars. NGC 2158 was a bonus that I was not expecting from such a small and relatively inexpensive telescope / spotting scope.

The Celestron travelscope-70 can be purchased HERE

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North Lincs astro meeting. 7th December 2015

moon

A record turnout of around 30 people met at the North Lincolnshire astronomy society on Monday 7 th December 2015 for the regular monthly meeting.

We were given a fantastic talk by guest speaker Paul Money about Meteors and their origins. The highly informative and entertaining talk was enjoyed by all.

Special thanks to Sarah and other members who contributed to a Christmas buffet and  “nibbles” that HAD TO be finished off before anyone could leave

For more info on the North Lincs astro society click HERE

 

 

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