Experience the Explore Scientific FCD100 Series 127mm f/7.5 APO Refractor—an optical instrument engineered for observers who demand exceptional color correction, contrast, and versatility in a single elegant package. With a generous 127mm aperture and a fast f/7.5 design, this telescope delivers bright, wide-field views for visual astronomy and clean, high-detail frames for astrophotography.
Precision ED optics with unmatched color purity
The heart of the ED127 is an air-spaced triplet lens built around genuine HOYA FCD100 extra-low dispersion glass. Paired with proprietary EMD (enhanced multi-layer) coatings, this design virtually eliminates chromatic aberration and internal reflections across the spectrum. The result is razor-sharp planetary disks, subtle lunar shading, and rich, low-noise deep-sky fields where stars remain pinpoint and nebular details stay true to their colors.
- 127mm aperture delivers bright, immersive views and detailed planetary features
- F/7.5 optical speed for both wide-field imaging and rapid framing
- Air-spaced triplet APO design with HOYA FCD100 ED glass for superior color correction
- EMD enhanced multi-layer coatings boost light transmission and contrast
- Diffraction-limited optics designed to maximize image sharpness from edge to edge
Build, balance, and precise control
Every detail is tuned for serious work in the field. The 2.5" HEX focuser provides smooth, precise focusing with ample travel and supports imaging setups up to 10 lbs, giving you confidence to run longer exposures and heavier cameras without compromise. The telescope is built from robust aluminum for durability in a portable form, ensuring reliable performance whether you’re at a dark-sky site or a busy urban observatory.
- Integrated dew shield minimizes dew formation during damp nights
- Cradle ring with carry handle simplifies transport and setup
- Vixen-style dovetail plate for broad compatibility with common mounting systems
Designed for visual delight and astro-imaging excellence
Whether you’re chasing subtle Jovian cloud bands, resolving fine filaments in planetary nebulae, or capturing streaks of distant galaxies, this refractor delivers. The combination of color-pidelity, contrast, and mechanical stability translates into more productive sessions: fewer nights wasted recentering and re-focusing, more time collecting meaningful data, and results you’ll be proud to share.
Ideal use cases and who benefits most
- Visual observers who crave high-contrast, true-color skies with minimal false color
- Astrophotographers seeking a capable front-end for long-exposure galaxy, nebula, and star-field imaging
- Deliberate setups where a robust, portable refractor with a heavy-imaging-capable focuser is preferred
- Anyone who appreciates premium glass, precise coatings, and durable, field-ready construction
Practical insights for best results
To maximize the FCD100 Series 127mm’s potential, pair it with a stable mount and a well-balanced rig. Use the 2.5" HEX focuser to dial in exact focus, and take advantage of the dew shield during dew-prone nights. The Vixen-style dovetail makes quick work of swapping mounts or sharing your telescope across a small observatory setup. For planetary work, planets near opposition provide the most dramatic surface detail; for deep-sky imaging, start with wide-field captures to identify bright emission regions and then narrow in on fainter structures with longer exposure times.
Choose the Explore Scientific FCD100 Series 127mm f/7.5 APO Refractor for a premium, purpose-built instrument that unites optical excellence with thoughtful mechanical design. It’s the choice for serious visual observers and dedicated astrophotographers who won’t settle for anything less than precise color, strong contrast, and dependable field performance.
Shipping Policy
Effective Date: 11/18/2025
1. Introduction
At Hobby Tech Supply, we aim to provide a seamless and transparent shipping experience for our customers. This Shipping Policy outlines the terms and conditions related to the delivery of products purchased from our website, hobbytechsupply.com.
2. Shipping Destinations
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Countries We Ship To:
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United States
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Future Expansion:
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We are continually working to expand our shipping destinations. Please check back for updates.
3. Shipping Costs
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Domestic Shipping (United States):
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Standard Shipping: FREE standard shipping for all orders over $100
- The free shipping threshold applies to the subtotal after discounts and before taxes.
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Expedited Shipping: Calculated based on item weight and priority selection (FedEx)
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Flat Rate Shipping: $5 flat rate for orders under $100.
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International Shipping:
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Coming Soon!
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No Hidden Fees:
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All shipping costs and sales taxes are calculated and displayed at checkout. There are no hidden fees.
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4. Order Processing Time
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Processing Time:
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Orders are processed within 1-2 business days (Monday to Friday, excluding holidays). Note: Processing time does not include weekends or carrier transit time.
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Order Cut-Off Time:
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Orders placed before 12:00 PM EST start processing the same day. Please note that shipping timelines depend on each vendor’s schedule, so same-day shipping cannot be guaranteed.
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Weekend and Holiday Orders:
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Orders placed on weekends or public holidays will be processed on the next business day.
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Note: If your order contains items from multiple vendors, they may ship separately, and each shipment will have its own tracking number.
5. Estimated Delivery Time
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Domestic Shipping:
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Standard Shipping: 3-5 business days
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Expedited Shipping: 1-2 business days
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International Shipping:
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Coming Soon!
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Note: Delivery timeframes are estimates. Actual processing and transit times vary by vendor and carrier and cannot be guaranteed. We are not responsible for supplier delays or carrier issues caused by factors outside our control, including vendor shipment issues or weather-related carrier disruptions.
6. Shipping Methods and Carriers
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Reliable Carriers:
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Domestic Carriers: USPS, FedEx, UPS
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We partner with reputable carriers to ensure your package arrives on time and safely.
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Shipment Tracking:
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All orders include tracking information, which will be provided via email once your order has shipped.
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Orders fulfilled by multiple vendors may arrive in separate packages. Each will include its own tracking number.
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Insurance:
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Most shipments include limited carrier insurance. Additional coverage may be provided by certain vendors. If your order arrives damaged or missing items, please contact us so we can assist with a resolution.
7. Order Tracking
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Tracking Information:
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After your order has been shipped, you will receive an email containing:
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Tracking Number
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Carrier Name
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Link to Track Your Package
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How to Track Your Order:
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Visit hobbytechsupply.com/track-order or the carrier's website.
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Enter your tracking number to view the status and estimated delivery date.
- If your order is split into multiple shipments, you will receive separate tracking emails for each package.
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Assistance:
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If you have questions or need assistance with tracking, please contact our Support team at support@hobbytechsupply.com.
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8. Delivery Issues
8.1 Delayed or Lost Packages
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Delayed Delivery:
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If your package is delayed beyond the estimated delivery time, please contact us at support@hobbytechsupply.com or (412) 520-1022.
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Lost Packages:
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If your tracking information indicates that your package was delivered but you have not received it, please complete the following steps:
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Verify the shipping address provided.
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Check with neighbors or building management.
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Contact us for further assistance.
- We may also ask you to file a missing package claim with the carrier so we can proceed with a replacement or resolution.
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8.2 Damaged Packages
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Reporting Shipment Damage:
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If your package arrives damaged:
- Contact us within 7 days at support@hobbytechsupply.com.
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Note: Returns will NOT be authorized if damage is caused by customer misuse or improper setup.
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Take photos of the damaged packaging and items.
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Resolution:
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We will work with you to arrange a replacement or refund as appropriate.
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9. Missing or Incomplete Items
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Reporting Missing Items:
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If any items are missing from your order:
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Contact us within 7 days of receiving your package.
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Provide your order number and details of the missing item(s).
- Note: refunds will NOT be authorized if missing items are reported late.
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Resolution:
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We will investigate and resolve the issue promptly by sending the missing item(s) or offering a refund.
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10. Return and Refund Policy
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Returns:
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Damaged or Missing Items:
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These must be reported within 7 days of receiving your package so we can file the appropriate claims with the carrier or supplier.
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General Returns (not related to damage or missing items):
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You may request a return within 30 days of receiving your order.
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After approval, you will receive return shipment instructions.
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Conditions for General Returns:
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Items must be unused, undamaged, with all components present, and in their original packaging.
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Certain items (e.g., personalized goods, gift cards) may not be eligible for return.
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Return Shipping Costs:
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Customer Responsibility: Return shipping costs are the customer's responsibility unless the item is defective or not as described.
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Restocking fees vary by manufacturer and will be clearly communicated before a return is approved.
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Company Responsibility: If the return is due to our error, we will cover the return shipping costs and associated fees.
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Refunds:
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Refunds are processed within 14 days after receiving the returned item.
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Refunds will be issued to the original payment method.
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For More Information:
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Please refer to our Return and Refund Policy for detailed information.
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11. Incorrect Address
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Address Accuracy:
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Please ensure that all shipping information is correct. We are not responsible for orders shipped to incorrect addresses provided by the customer.
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Once an order is placed, if an error is identified, contact us immediately. If the item has not yet shipped, we may be able to update your address as requested.
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Returned Packages:
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If a package is returned to us due to an incorrect address:
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We will contact you to arrange reshipment.
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Additional shipping charges may apply.
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12. International Customs and Duties
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Coming Soon!
13. Contact Information
If you have any questions or concerns regarding your shipment, please contact us:
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Customer Service Email: support@hobbytechsupply.com
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Customer Service Phone: 412-520-1022
Our customer service team is available Monday to Friday, 8 AM to 4 PM EST.
14. Changes to This Shipping Policy
We reserve the right to modify this Shipping Policy at any time. Changes and clarifications will take effect immediately upon posting on the website. We encourage you to review this policy periodically.
Thank you for shopping with Hobby Tech Supply!
We appreciate your business and are committed to providing you with exceptional service.