In this podcast episode, we take a deep dive into telescope physics. We break down how focal length and f-ratio influence your stargazing, from determining magnification for visual observers to optimizing image scale for astrophotographers.

Learn the practical trade-offs between different telescope designs and access interactive calculators for field of view and light speed in the original article here: https://astroforumspace.com/telescope-focal-length-f-ratio-explained-for-astrophotography-and-stargazing/

Subscribe, follow, or join Wido’s AstroForum to ensure you don’t miss any updates on astrophotography and backyard astronomy.

Which budget smart telescope is the best fit for you in 2026? In this episode, We're putting the Seestar (S30, S30 Pro, S50) and the DWARF (3 & Mini) head-to-head.

We analyze pricing, technical specs, and actual real-world performance to see which smart scope wins the budget crown. Whether you’re just starting out or looking to add a portable unit to your gear, this comparison will help you decide.

Chec out my side-by-side photos and guide: https://astroforumspace.com/dwarf-iii-vs-seestar-s30-vs-s50-best-budget-smart-telescope/

Keep looking up!

Wido.

In this tutorial, we explain why telescope aperture matters, but also why just buying the biggest aperture telescope tube out there might not be the best thing for you. The tutorial explains what aperture is, how it relates to light-gathering power and resolution, and we briefly discuss the various telescope types that could deliver such a large-aperture view of the night sky, along with their pros and cons.

Enjoy and keep looking up!

You can find full blog on telescope aperture here: https://astroforumspace.com/telescope-basics-explained-aperture-beginner-tips/

Join my YouTube channel as an astrocoffee supporter for $2.99 p/m: https://www.youtube.com/channel/UCYoVkD8JgC8txf2AcwGjlmg/join

I'm producing FREE content about astrophotography and space. Any SUPPORT is greatly appreciated!

You can support me as follows:

1) Donate (PayPal): https://bit.ly/3LTXhTS

2) SUBSCRIBE to my YouTube channel: https://www.youtube.com/astroforumspace

3) Join the channel for $2.99 to buy me a monthly cup of coffee

4) Visit my website: https://astroforumspace.com/

5) Buy some of my merchandise on my website: https://astroforumspace.com/shop/

6) Use one of my affiliate links below to buy your Astrogear at your preferred shop. I get a small percentage to keep my YT channel and website going, and you pay the same price.

- Agena Astro (USA/WW): https://bit.ly/3N0fnaB

- High Point Scientific (USA/WW): https://bit.ly/45BccwW

- Astroshop (EU/WW): https://bit.ly/3ijbZVZ

- ZWO (WW): https://www.zwoastro.com/?ref=widooerlemanshotmailcom

- Vaonis (WW): https://vaonis.com/?rfsn=8043498.d4f478f

- Amazon (WW): https://amzn.to/3gGLWaK

Any support you can give is highly appreciated, thanks!

Follow me on:

Website: https://www.astroforumspace.com/

E-mail: astroforumlive@gmail.com