Speers-Waler Series4 2″ 25mm eyepiece offers a wide 75 degree AFOV with superb correction.
Focal length 25.0mm
Eye relief : 10mm
Elements:(6)
The Series4 25mm performance
Edge field curvature (546nM): Sagittal,-0.22mm, Tangential: 0.23mm.
Edge lateral color (420-656nM): 0.009mm.
Chromatic focal shift (420-656nM) 0.38mm.
Full performance specifications on request.
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When we receive your payment, orders will be delivered within one business day. Estimated delivery 3 - 5 days.
* Orders can be shipped via USPS Priority Mail (Express), First Class Mail or First Class Mail.
Refund unopened items to receive a full refund or exchange within forty days from the date that you received your item.
The buyer is responsible for return shipping costs unless the error of ours is at fault (e.g. If you receive an incorrect product or a damaged item We will cover the return shipping. If an exchange request is made and we are able to pay for the shipping costs to return the replacement item.
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