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JTW Astronomy

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Aalsmeer, Netherlands

jtwcameras.com
Telescope store

JTW Astronomy Reviews | Rating 4.7 out of 5 stars (5 reviews)

JTW Astronomy is located in Aalsmeer, Netherlands on Aalsmeerderweg 103M. JTW Astronomy is rated 4.7 out of 5 in the category telescope store in Netherlands.

Address

Aalsmeerderweg 103M

Phone

+31642694782

Service options

In-store shopping

Accessibility

Wheelchair-accessible car park

Open hours

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Dominic Reardon

I bought a H alpha modified Nikon D5600 from JTW. There were a few delays mainly due to covid and supplier delays but Mark kept me in the loop, his communication was great throughout. As for the camera, it works great and I'm very impressed with the results! I have some sample images on my Instagram @dom_reardon_photo

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Daniel Gallo

I sent my Sony a7 III camera to JTW Astronomy in May for astro modification and received it back a few weeks later. The astro-modification significantly improved the sensitivity of the camera, but I noticed that the stars at the edges of the images were elongated / out of focus when used with my Sony 24mm f/1.4 GM lens (my Rokinon 135mm f/2 lens was fine), so Mark offered to take another look at the camera and tweak the sensor position, and kindly covered the shipping for this. I also sent two of my lenses for testing. It took a while to get the camera and lenses back, but I understand they were closed for a couple of weeks due to sickness. When I tested my Sony 24mm GM lens after getting the camera back, unfortunately I still noticed elongated stars all around the edges (even when stepped down to f/2.8), meaning only the center of images would be usable with this lens. I tested the lens on my non-modified a7R III and the stars are fine with that camera, so this is just an issue since having the a7 III astro-modified. According to Mark this may be due to the mod filter being slightly thinner than the one it replaced, and the design of this particular lens. While I love how sensitive the camera is for astrophotography, I'm disappointed I can't really use my Sony 24mm GM lens for wide-field astrophotography with my modified camera body. Please be aware if you have this same lens, you may also experience a similar issue after having your camera astro-modified.

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Dirk Cornelis

For my mount I ordered a new RA worm as a replacement of my paramount ME worm, price was correct for a precision worm and bearing to replace my old worn out one. Turns out the worm was fine polished too and now my paramount tracks better with even with less periodic error than new. So not only cameras but also precision mechanics.

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José Rodrigues

Sent my 6D to JTW for a filter replacement. I am very satisfied with the results. The camera is sharper in daylight picture and Ha pops out at night. The procedure was quick and Mark communicated nicely and often.

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Tony Firth

Top quality product, well pleased. Thank you

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