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Fred_S 
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Joined: 12 January 2017
Country: Netherlands
Location: Noord Holland
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Posts: 12196
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 Posted: 19 April 2022 at 20:42 |
Close to the mill in the previous post, another mill is located. Coincidentally, it's called 'De dog' (previously Dogmolen) whereas the mill above is called "De Kat" (Dutch for 'the cat'). In English it's Cat and Dog, however in Dutch no meaning like that at all  . I haven't been able to retrieve where these names come from. In the past De Kat was called De Zien, which is the name of the polder it was working for.  NEX-5N, full spectrum converted + Sony 18-55mm OSS + 720nm
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Micholand
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Joined: 30 October 2005
Country: Germany
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Posted: 20 April 2022 at 19:17 |
Lovely windmills Fred 
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Micholand
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Country: Germany
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Posted: 20 April 2022 at 19:23 |
Some experimenting with a CLS filter which blocks the light of the spectral lines of mercury and sodium-vapor lamps (between 540nm and 650nm).
"Old apple trees blooming"
a7(converted) + Tamron 28-200/2.8-5.6 Di III RXD + Astronomik CLS camera-clip filter (IR650nm + 450-540nm)
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Fred_S
Senior Member
Joined: 12 January 2017
Country: Netherlands
Location: Noord Holland
Status: Offline
Posts: 12196
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Posted: 20 April 2022 at 21:09 |
 Micholand wrote:
Lovely windmills Fred |
Thanks Micheal! Good experiment with this apple tree shot 
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Micholand
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Posted: 21 April 2022 at 20:34 |
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Micholand
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Joined: 30 October 2005
Country: Germany
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Posted: 21 April 2022 at 20:48 |
"Gardening is my passion"
a7(converted) + Tamron 28-200/2.8-5.6 Di III RXD + Astronomik CLS camera-clip filter (IR650nm + 450-540nm)
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Fred_S
Senior Member
Joined: 12 January 2017
Country: Netherlands
Location: Noord Holland
Status: Offline
Posts: 12196
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Posted: 21 April 2022 at 20:55 |
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Petrochemist
Groupie
Joined: 21 December 2020
Country: United Kingdom
Location: Essex
Status: Offline
Posts: 55
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Posted: 22 April 2022 at 09:37 |
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Looks a bit energetic to me, but the colours are great is this with the astro filter again?
I think my light pollution filters are nebulae types which probably cut a wider range of wavelengths. There are huge differences between different versions of these - but I guess I should give mine a try sometime :)
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Mike
Compulsive Photographic Dabbler
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Dopol
Alpha Eyes group
Joined: 17 May 2007
Country: Netherlands
Location: Utrecht
Status: Offline
Posts: 8525
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Posted: 22 April 2022 at 10:01 |
Micholand wrote:
"Gardening is my passion"
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 Be yourself; everyone else is already taken
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Micholand
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Country: Germany
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Posted: 22 April 2022 at 20:09 |
Petrochemist wrote:
Looks a bit energetic to me, but the colours are great is this with the astro filter again?
I think my light pollution filters are nebulae types which probably cut a wider range of wavelengths. There are huge differences between different versions of these - but I guess I should give mine a try sometime :) |
Exactly, there are a lot of different light pollution filters and not all of them pass IR spectrum. Some block emission lines of artificial light sources like street-lights, but also IR. And then might even have different percentage of transmission for H-beta {486nm} or O-III {496+501nm}. The Astronomik CLS filter has a pass range from 450 to 540nm (92% transmission) and beyond 650nm (97% transmission): 
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Micholand
Admin Group
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Joined: 30 October 2005
Country: Germany
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Posted: 24 April 2022 at 15:11 |
"Take a seat"
a7(converted) + Tamron 28-200/2.8-5.6 Di III RXD + Astronomik CLS camera-clip filter (IR650nm + 450-540nm)
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Micholand
Admin Group
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Joined: 30 October 2005
Country: Germany
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Posted: 24 April 2022 at 15:11 |
"Apple orchards"
a7(converted) + Tamron 28-200/2.8-5.6 Di III RXD + Astronomik CLS camera-clip filter (IR650nm + 450-540nm)
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Fred_S
Senior Member
Joined: 12 January 2017
Country: Netherlands
Location: Noord Holland
Status: Offline
Posts: 12196
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Posted: 24 April 2022 at 21:59 |
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very noce Michael! I like these colours and the composition is very nice too.
TFS
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Micholand
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Joined: 30 October 2005
Country: Germany
Location: MUC
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Posted: 27 April 2022 at 19:19 |
Thanks Fred. And now back to wavelengths beyond 740nm.
"Wasserburg, Lake Constance"
a7(converted) + Tamron 28-200/2.8-5.6 Di III RXD + Astronomik ProPlanet IR742 camera-clip filter
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Dyxum website
Filter posts
IR images (4)
> Forum Home > Dyxum Photographs > Themed Views
