Agena 1.25" Reticle Eyepiece with Focusable Dual Crosshair - 20mm
A reticle eyepiece is virtually indispensable for serious astronomy observing and astrophotography. The Agena 20mm reticle eyepiece boasts a double line crosshair laser etched into optical glass that extends from edge to edge. It greatly simplifies centering celestial objects in the eyepiece for more accurate go-to alignments. Unlike single line crosshairs in other illuminated reticle eyepieces, the double line design doesn’t obscure small targets when attempting to center them – they remain visible in the small box created by the intersection of the two pairs of double lines. Alignment can also be achieved by putting the object at the intersection of any two perpendicular lines. The reticle can be rotated and facilitates polar drift alignment routines for equatorial mounts and precision guiding for astrophotography. Eyeglass wearers will appreciate the focusing mechanism that allows them to bring the reticle to a sharp focus. The 20mm focal length provides a wide 70° apparent view of the sky allowing you to find objects and alignment stars more easily than shorter focal length eyepieces, while maintaining good eye relief, especially when compared with other higher-power reticle eyepieces (just use a barlow with this eyepiece if you want even more magnification/accuracy). Note that this eyepiece does not include an illuminator to light up the reticle pattern with red light. The eyepiece features a standard 8mm metric illuminator female thread (M8x0.75 specification) which accepts many (but not all) commonly sold illuminators if you wish to convert it into an illuminated reticle eyepiece yourself. Please note: This eyepiece was deliberately designed with a large center box compared to what you might be accustomed to with most other reticle eyepieces. This was based on requests from many customers who primarily wanted an alignment eyepiece that was easier to use without excessive squinting and straining. Others who want to use this eyepiece for critical tracking can simply defocus a star to where it occupies the center box, and its tracking/guiding will be just as accurate as using a smaller star image with a smaller central crosshair box. China
Note: Occasionally, the product you receive might have a slightly different cosmetic appearance or labeling than what is shown. This can often change from batch to batch according to the whims of the manufacturer. However, you will always receive a brand new, original product as described above. Description copyright: Agena AstroProducts - Reproduction without permission prohibited. A. Payment: You can pay via any payment method that eBay accepts. B. Shipping Method: United States Postal Service (USPS) or United Parcel Service (UPS) at your choice and expense (our choice if the item has free shipping option). eBay orders for items over $1,500 can only ship via UPS. C. Order Processing Time: Orders received by 12 noon Mon – Fri US Pacific Time generally ship on the same business day. Orders received after 12 noon PT or on weekends/holidays will ship by the next business day. D. Checkout: Please pay for the item(s) within 3 days from your account on eBay or by using the link in the email you receive from eBay. E. Shipping Discount: We offer combined shipping if you order multiple quantities/items and if items can be combined. eBay will automatically show you the correct combined/discounted shipping costs when you check-out. F. Combining Purchases: You can combine shipping for items purchased from us on eBay within 3 days. Buy the items individually and check out together for all items. eBay will combine the shipping weights and show you the discounted shipping cost. You must check out for all items together via eBay for this. We cannot combine shipping costs if you check out individually for your purchases. G. Sales Tax/VAT: Sales tax or VAT may be charged and collected by eBay as required by law based on your ship-to address and local tax/VAT rates. Please check with eBay. A. Delivery Time:
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