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William Optics 0.8x APO Field Flattener For GT 102

Price:  £169.00 (Inc. 20% VAT)Earn 169 Loyalty Points

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Generally In Stock, Please Confirm Before Ordering  

Generally In Stock, Please Confirm Before Ordering

Model:  P-F6A-GT102
Brand:  William Optics

William Optics 0.8x APO Field Flattener For GT 102
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William Optics 0.8x APO Field Flattener For GT 102William Optics 0.8x APO Field Flattener For GT 102William Optics 0.8x APO Field Flattener For GT 102

Flat6A for GT102 (T-mount not included)

This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 ratio refractors. WO Flat 6A will provide good illumination and flat field across APS sized sensors and smaller.

Special SCT adapter is available to attach it to SCT thread on ZS66 telescopes.

APS size
• Designed with APS chip-size DSLR cameras in mind.
• FMC doublet design.
• Produced entirely with the best Ohara optical glasses.

• Reducing factor 0.8X.
• It will flatten the field amazingly well and finally make you see those stars round! Differently from other brands' refractors, this flattener works amazingly well with the popular 66-80mm F/6 refractors.

Superb Finish
• William Optics polished anodized finish.
•All internal surfaces threaded and blackened to prevent reflections.

Easy to Use
• Rotating T-ring thread for any 35mm camera.
• Will accept any standard T-ring for your camera.
• SCT adapter available (optional) for ZS66.

Suitable for
• Z71, GT71, GT81,GT102.

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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 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


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