Achromatic convex burning lens by Dollond in a mahogany frame by Dollond

Achromatic convex burning lens by Dollond in a mahogany frame

Dollond

Fine art poster

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  • Amazing giclée print quality
  • 280gsm thick fine art print paper
  • 100+ year colour guarantee
  • Dimensions:
    • x cm overall ( x in)
    • x cm image ( x in)
£14.95

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Our prints

We use a 280gsm fine art paper and premium branded inks to create the perfect reproduction.

Our expertise and use of high-quality materials means that our print colours are independently verified to last between 100 and 200 years.

Read more about our fine art prints.

Manufactured in the UK

All products are printed in the UK, using the latest digital presses and a giclée printmaking process.

We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.

Delivery & returns

We print everything to order so delivery times may vary but all unframed prints are despatched within 2-4 days via courier or recorded mail.

Delivery to the UK is £5 for an unframed print of any size.

We will happily replace your order if everything isn’t 100% perfect.

Achromatic convex burning lens by Dollond in a mahogany frame by Dollond zoom

Achromatic convex burning lens by Dollond in a mahogany frame

It was used by William Herschel in his study of the properties of 'radiant heat'. In observing the Sun, William Herschel tried a number of different colour filters to protect his eyes and found that the different colours seemed to block out different amounts of heat as well as light. In order to assess the relationship between heat and light he decided to test if heat showed any of the same properties as light by using this lens to focus the heat onto a thermometer. This experiment showed that heat, like light, could be refracted.
Dollond

  • Image reference: F3407

Discover more

More by the artist Dollond.