Canon 400d with standard 18-55mm lens - filter question

[beamer3.6m]

I want to mount my canon 400d on my HEQ5 for wide field shots but it has the stock 18-55 EF-S lens and as such the EOS Clip filters are not suitable.

Is there anyway to use a light pollution filter with this set up.

Cheers.

[Beyond_Vision]

If you have a 2" LP filter just rest it in the lens hood but dont forget to take it out before moving the camera. I have done this a few times with reasonble success before I got my clip filter.

For a more robust solution it may be possible to get some sort of step down ring that the LP filter can be screwed into then screwed onto the lens

[beamer3.6m]

Stupid question but what size is the canon lens and what size would the step ring need to go down to in order to fit the filter?

[Merlin66]

The canon is a 58mm filter thread, and a 2" astro filter is a 48mm filter thread.

Contact Mark at Vintage Camera's they have them (and MANY others)

www.vintagecameras.co.uk

[tooth_dr]

Yes there is a way, simply cut off the back plastic bit on the lens which will allow clearance for the EOS filter. I've a CLS filter, the 18-55mm lens, and a 400d and it works.

I only did this because a) I had two idential lenses I was prepared to take the risk that if it was damaged then I wasn't going to be too annoyed.

It works 100% now, autofocus, etc unaffected, and bahaves just like it did before.

Here are some pictures, copy at your own risk

Here are a couple of 30s exposures from my house, first without, second with the filter fitter.

[beamer3.6m]

Thanks guys.

[astro_dt]

I want to mount my canon 400d on my HEQ5 for wide field shots but it has the stock 18-55 EF-S lens and as such the EOS Clip filters are not suitable.

Sod's law, I read this the day my EOS clip filter arrived and I have the stock lens!

But I think I have a solution to the problem using EOS mount macro extension tubes to move the lens away from the ccd and mirror. This means that the 18-55mm cannot achieve focus, but I can correct this using the lens assembly from an old OM10 2x converter that I no longer use.

I just need to machine up a plate to mount the lens inside the extension rings. Tested it using blue-tak and it works!

Will take a couple of weeks before I can get to my Step Father's work shop but I will post pictures of the final result.

Cheers

Danny

[skye at night]

You could just get a front mount filter if you don't want to butcher your lens.

Steve

[gataki]

Hi,

I followed Merlin's excellent advice:

Contact Mark at Vintage Camera's they have them (and MANY others)

www.vintagecameras.co.uk

and ordered late Sunday night - the step down ring arrived Tuesday morning from Vintage Cameras.

Great service!

Liz (who need no longer need fear standing on her forgotten LPR filter!)

[astro_dt]

You could just get a front mount filter if you don't want to butcher your lens.

Steve

Hi Steve

In hindsight, that's what I should have done. Problem is I already paid for the clip filter, nothing left to spend!

I will still use the clip for the EOS350 on the back of my WO66mm and I have some old M42 lenses that will work with the clip filter in place.

It's just the 18-55mm is the most used so I wanted a small adapter that is easy to cart around. The cost of the bodged-2x-converter will be practically zero!

Cheers

Danny

[beamer3.6m]

I did purchase a stepper ring by the way and I got mine from SRb-Gritum.

They were very cheap and delivery was very quick.