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ZWO EFW Mini 5 Position Electronic Filter Wheel For 1.25" & 31mm Unmounted Filters

ZWO EFW Mini 5 Position Electronic Filter Wheel For 1.25'' & 31mm Unmounted Filters
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Price:  £161.00
List Price:  £169.00
Saving Of:  £8.00
(Inc. 20% VAT)Earn 161 Loyalty Points
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Model:  Z602-EFW-MINI
Brand:  ZWO

Availability:  

  

Generally In Stock, Please Confirm Before Ordering


The latest news from ZWO, this electronic filter wheel is certainly one of the smallest 5-position filter wheels in the world. it is also extremely lightweight, it weighs 300g only.

Its housing is CNC machined from aircraft grade aluminium alloy.

The stepper motor, that is the heart of any electronic filter wheel, is made by a reliable Japanese company, NPM. You can trust its quality and reliability.

This high quality 5-position filter wheel has been designed mainly for astro photography, especially, but not exclusively for ZWO ASI1600 cameras.

As it is ASCOM compatible, it can be used with other cameras as well.

Up to five filters can be installed in the numbered compartments that feature standard 1.25" filter thread or you can also install 31mm unmounted filters (or semi-mounted Astronomik filters), and each can be selected for your eyepiece or camera from an imaging software.

Although ZWO only offers 1.25" filters at the moment, 31mm filters will be also available soon.

The filter wheel can be attached to your focuser either by the supplied 1.25” nosepiece adaptor or via a T-thread. There is actually a female T-thread on both sides of the filter wheel.

One compartment can be left empty for unfiltered viewing.
The robustly constructed filter wheel is supplied with a 1.25” nosepiece and a 1.25” eyepiece holder with brass compression ring.

Please note: your focuser will require 20mm of additional inward focusing distance from the normal focus position to compensate for the thickness of the filter wheel.

This filter wheel will be a good addition to the new ASI1600 range of cameras, but especially for the monochrome versions. (please make sure that your telescope otherwise have enough back focus, of course, e.g. Newtonian telescopes would usually have a back focus issue, unless modified or specially designed for astro photograpy...)

LIMITING F-RATIO

The distance between the filter and sensor is around 10-12mm when you connect the ASI1600 to this EFW, so a 1.25″ filter won’t have vignetting with a scope with up to f/7 - f/8 focal ratio and a 31mm filter won’t have vignetting up to a f/2 lens. (TBC)
ZWO's new RGBL filters are recommended to use with ASI1600 cameras, as these specially designed filters will offer nearly 1:1:1 RGB color balance.

The full ZWO EFWmini set includes:

EFWmini Body
T2 nosepiece
1.25″ Holder-T2
T2-T2 adapter
USB2.0 Cable
1.25″ filter requirement: threads length shorter than 3mm, height without threads less than 7mm
31mm filter requirement: a set of M2 screws and washers needed to fix the filter are included in the package


SPECIFICATIONS

Limiting F-ratio: f/2 with 31mm filters and f/7-f/8 with 1.25" filters (calculated with ZWO's 2mm thick filters)
Thickness: 20mm
Power consumption: 150 mA at 5 Volts
ASCOM compatible
Positions: 5 x 1.25" or 5 x 31mm glass, unmounted or semi-mounted (like Astronomik)
Weight: 300g

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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 sales@rothervalleyoptics.co.uk.

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 2pm 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. 

Please note International customers will need to contact us for a shipping price prior to ordering via the website. This all depends on the size and weight of the items. Please get in touch with us for any postage costs. Please note we do NOT ship telescopes or heavy items outside of the UK. This is due to massive postage costs and problems regarding returns.

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

01909774369
sales@rothervalleyoptics.co.uk

Finance is now available on most products above £250! We offer 12, 24, 36 and 48 months with a fixed 15.9% typical APR. Please note this can't be done through the website at this moment in time. You will need to email us or drop into the shop to sort out finance. As long as the item is above £250, finance is generally available!

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..

If you have any questions about this, simply give us a ring or drop into the shop for a chat.

- - - Rother Valley Optics Ltd

01909 774 369
sales@rothervalleyoptics.co.uk


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