Budapest Telescope Centre

btc@tavcso.hu +36-20-484-9300

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Budapest Telescope Centre

btc@tavcso.hu +36-20-484-9300

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Planet filter #23A light red

incl. 27% VAT

11.60 €

Including 27% VAT:

11.60 € (4 700 HUF)

Net price (for non-EU customers):

9.13 € (3 701 HUF)

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2 year manufacturer warranty

Product code: F23A

Planet filter #23A light red (25% transmission, M28.5x0.6)

Rating

4.7/5, based on 3 reviews

Optical quality

5.0/5, based on 1 reviews

Mechanical quality

5.0/5, based on 1 reviews

Price/Value ratio

4.0/5, based on 1 reviews

These color filters show the surface structures with finer details. The filters have standard threads and can be mounted onto the eyepieces.

#23A Bright red (25% transmission) A popular filter for observing Mars, Jupiter and Saturn. Due to its lower transmission, it can be used with telescopes of 130 mm diameter or larger. It can be used for similar purposes to #21 and #15, providing slightly stronger contrast. A suitable filter for daytime observation of Mercury and Venus, as it significantly increases the contrast between the planets and the blue sky.

More about the product

These color filters show the surface structures with finer details. The filters have standard threads and can be mounted onto the eyepieces.

This detailed article provides many useful information how to choose the perfect filter for a given planet.

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Gallery (7)

2 year manufacturer warranty

krsto_herenda's opinion

2021.03.21.

After a few weeks, months of usage

Optical quality

Mechanical quality

Price/Value ratio

Planet filter #23A light red (25% transmission, M28.5x0.6)

Pros

Almost complete removal of last visible traces of green light. Solid construction.

Cons

None of importance.

Summary

You might be tempted to get red or dark red, thinking this one won't be enough, but if you have telescopes with apertures below some 120 mm, don't. Get this, it does the job well and you won't suffer trying to see anything at higher magnifications.

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