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Explore Scientific 92 Argon 12mm LER Eyepiece

Explore Scientific 92 Argon 12mm LER Eyepiece
Price:  £470.00(Inc. 20% VAT)Earn 470 Loyalty Points

Model:  0219912
Brand:  Explore Scientific



Generally In Stock, Please Confirm Before Ordering

2 Year Warranty On All New Items
(Excluding Batteries & Globes)

The Explore Scientific 92 Argon 12mm LER Eyepiece is the most powerful of the Explore Scientific LER range. These eyepieces are designed to balance the modern demands of field sharpness over a wide apparent field, with long eye relief, which is of particular benefit to those who wear glasses while observing.

Whilst many advanced observers may be getting rather used to the joys of super-wide apparent field eyepieces, we're sure that the Explore Scientific LER design is one of the sharpest, yet most comfortable and immersive eyepieces we've ever experienced - it really is a joy to use. The occular size alone has to be seen to be believed.

The 8 lens (arranged in 6 groups) design of this eyepiece yields superbly corrected views and the 22mm eye relief and wide occular diameter combine to deliver a fantastic user experience. The 12mm focal length will be a good fit for many different telescope designs and focal ratios. Those who have lower focal ratio instruments, such as shorter ED and Apo refractors, will adore the widefield deep sky views this eyepiece delivers. Whilst owners of 8, 9.25 and even 10-inch (on nights of good seeing) SCT or RC telescopes, who are looking for higher power planetary and lunar magnifications will love what this eyepiece does for their particular instruments.

Explore Scientific's EMD coatings provide exceptional contrast and combat internal reflections extremely efficiently. The eyepiece has internal baffles and entirely blackened internal fittings which complement the EMD coatings.

The Explore Scientific 92 Argon 12mm LE Eyepiece is Argon purged and completely waterproof - so is impervious to dirt, moisture and fungal ingress.


Net weight (without access.) (g) 1100

Total length (mm) 154

Focal length (mm) 12

Field diaphragm (virtual, mm) 19.6

Apparent field of view (degrees) 92

Lenses/Groups 8/6

Eyepiece Barrel Diameter (mm) 50.8 (2-inch)

Length of the eyepiece barrel (mm) 33

Eyecups Rubber eyecups, foldable

Eye relief (mm) 19.9

Diameter (mm) 70

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Some items that are showing as in stock are in stock at our holding warehouses, not at the shop. To double check the stock levels at the shop, please contact us on 01909774369 or

The delivery times for most items is 1 - 2 days but again, please double check stock levels on important orders before placing an order via the website.

The delivery costs for courier next day are for mainland UK only. If you live in the Scottish Highlands/Islands, Channel Islands or Northern Ireland, then a shipping surchage will apply. please contact us for prices. Smaller items can still go 1st class via Royal Mail.

Please note that if you are wanting to take advantage of our Saturday and Sunday timed services or next day pre 12 or pre 10:30 services, you MUST check that the stock is here at the shop before placing orders. Also, orders using the Saturday and Sunday services must be placed before 1pm the previous working day. Also, please remember to check that the stock is here at the shop before placing orders. If the stock is not at the shop, we won't be able to ship on any of the timed services. 

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If you have any questions regarding stock levels or delivery, please get in touch.

Rother Valley Optics now have a loyalty point scheme active on the website. As you can see from the products, every item has a point value. Each pound you spend with us, you will receive 1 loyalty point. 1 point is worth 1p. You can accumulate these points as you shop with us, then when you are over £5, you can spend them on the website! Easy as that.

Even if you collect most of your items from our shop, you can still order via the website and select the "shop collection" delivery option. Then you can come to our shop, collect your item and still get your points!

Please note this scheme is online only. Customers who order via the telephone can still be added to the scheme manually. Please ask for more details on this. Before placing orders online, please make sure you are registered with us first otherwise your points won't be allocated.

So happy shopping and if you have any questions about the scheme or any other queries, please get in touch.

Rother Valley Optics


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Please note some items are NOT eligible for finance. Please contact us for eligibility first. 

Please get in touch with us today to find out if you're applicable.

You must be over 18 years to apply, live in the UK, have a valid UK bank account and not be bankrupt. Your credit file will be searched on application to see if you are eligible.

Rother Valley Optics Ltd is registered in England and Wales 04762707. Registered Office: 21 Station Road, Kiveton Park, Rotherham, S26 6QP. Rother Valley Optics Ltd acts as a credit broker only. Rother Valley Optics Ltd are authorised and regulated by the Financial Conducts Authority. Credit provided subject to age and status..

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- - - Rother Valley Optics Ltd

01909 774 369