Polarizer accessory for non-SLR's?
Are there any 3rd party polarizer filters for non-SLR cameras? Canon sells expensive Wide and Tele converter lenses for a number of non-SLR models..

Comments (5)

Non slr/dlsr cameras can generally use any polariser, circular or the cheaper linear. As long as the thread size matches the camera or you have step-up/down rings to fit and you have any necessary adapter/mounting tubes there will be no problem attaching a PL to your camera. As usual with all add on lenses, go for the more expensive, multicoated options. A search of adorama or B & H will listed dozens if not hundreds....

Comment #1

Let me re-phrase the question in 2 parts for the point & shout type cameras wthout lens filter threads, like the Canon Power Shot series:.

1) can a standard polarizer filter be screwed onto the lens adapter tubes that Canon sells for those types of cameras. It is not obvious from the Canon web site if those lens adapter tubes are long enough to accomodate the lens zoomed out to full telephoto and a polarizer filter on the end of just the adapter tube (not adapter tube+wide angle lens adapter). 2) are their 3rd party lens adapter tubes that are designed to hold a polarizer with normal lens at full telephoto?..

Comment #2

To: Joe K. re: polarizer.

In the case of my G7 camera,both the Canon (LA-DC58H), a plastic conversion lens adapter, and a LENSMATE G7 58mm (aluminium) will work with a pola-filter. To avoid possible vignetting, I attach a 58 to 62 mm. step up ring (B+W) and a 62mm. circular polarizer. The step ring moves the filter forward by a couple of mm.,but the Adapters are designed to the right length, so that the front camera lens element does not touch the filter (so says Canon). The adapter + filter also protects the camera lens from dust and minor bumps.

Most adapters block some of the on-camera flash, and a corner of the optical viewfinder, if your camera has one. With the G7, I use the hot shoe and and accessory flash and compose through the LCD screen on the camera back...

Comment #3

To: Joe K, re: Canon conversion lens adapters.

I do not know what Canon Camera you are intending to use with a filter. The G7, G6, and G5,the S2 and S3 and most likely the new S5 all have wide angle and telephoto conversion lenses, requiring an adapter. The filter thread size may vary from model to model, but filters can be mounted right on the adapters. Polarizing filters, particularly those with thicker mounts can cause vignetting. By attaching a step-up ring to the adapter, and using larger filters, the polarizer's rim will be on the outside of the adapter, thus no vignetting. You unfortunately have to experiment.

Canon is very vague on this topic. For instance, in the G7 manual, the use of the Wide/Tele conversion lenses mention mounting them with the use of the "58mm. filter thread" on the adapter. It also states that you cannot use filters at the front of the conversion lenses. Of course! These lenses do not have threads up front. But the manual does not recommend or prohibit mounting filters on the adapter threads.

Support for clarification. All I got out of them was that" while Canon does not specifically endorse the use of just filters with the adapters, they know that some users do mount filters and they do fit." " Canon has no data on the performance of these combinations, not even with a genuine Canon filter, and they won't speculate if the autofocus or light metering functions work correctly." The only thing they conceded to was that the front of the G7 lens will "most likely" not touch the filter when fully extended. This is also why I use the step-up ring. It moves the filter slightly forward. In use, I have not found any focus or exposure problems.

When I examined the conversion lenses for the G7, both lenses had the rear glass element slightly forward in their tubes, and the front of the camera lens (at least as visually observed) stopped at the rear of the filter thread/conversion lens mount.

There is some potential for damage to the front of the camera lens surface or the zoom motor(if retarted), but a step-up filter should minimize these possibilities. Also consider whether your filter glass is mounted by a threaded ring or a wire cir-clip, and does the filter have a narrow or wider mount(particularly for polarizers)? These factors can determine your success with a non-SLR+filter combo. If you live in the United States, contact the techies at Canon USA, they may give you more definitive answers than what I got from Canon Canada.

Good luck with the filter project, and have fun...

Comment #4

To: Joe K. I have just found a site for "Precision Photo" that might have both branded and aftermarket accessories for digicams. You may find adapter tubes and filters there. They seem like decent folks.

Find: located close to Detroit in Macomb Township.

The Best: Istvan N...

Comment #5

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This question was taken from a support group/message board and re-posted here so others can learn from it.


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