weight of filters on barrel of lens....

[herc182]

I bought a "snap" on adapter from next photo and then two filters (a UV and a polariser). when they are all on, the lens protrudes from the solid part when it is off (or at least the filters and cover do).

Does this extra weight do any long term damage to the fz20 lens?

thanks

[RCCI]

To tell you the truth, I have never seen that setup before and I don't know what type of problem (if any) that it could cause.

I bought the Phayee lens adapter and put my filters on the front of it. That way my actual lens is always enclosed and protected from everything.

Sorry I couldn't help.

[Anex]

Weight is on the frame, not the lens.

[herc182]

thanks for your reply. is it not really heard of to use a polariser and a UV filter together?

[herc182]

the weight is on the bit that comes out of the frame when you power up, which is the lens (right?!). and it wobbles a bit if you move it (very little though, i am not trying to break it!).

just concerned that it coming out and in all the time with the filters on it will damage it in the long run.

[LoveLife]

the weight is on the bit that comes out of the frame when you power up, which is the lens (right?!). and it wobbles a bit if you move it (very little though, i am not trying to break it!).

just concerned that it coming out and in all the time with the filters on it will damage it in the long run.
I am in the business. You can use the snap on with a filter with a problem. DO not forget to use your Panasonic lens hood.

[emalvick]

the weight is on the bit that comes out of the frame when you power up, which is the lens (right?!). and it wobbles a bit if you move it (very little though, i am not trying to break it!).

just concerned that it coming out and in all the time with the filters on it will damage it in the long run.

I was a bit concerned when I saw that setup because I like to use a UV and polarizer together quite a bit, almost anytime I am outdoors on a sunny day. I doubt it will be a problem, but if you hear things grinding or catching, you may want to rethink the setup.

I use a Phayee with the UV always attached. It basically encases the whole lens setup. I then attach the polarizer to the UV when needed. It is a nice setup.

Erik.

[LoveLife]

I was a bit concerned when I saw that setup because I like to use a UV and polarizer together quite a bit, almost anytime I am outdoors on a sunny day. I doubt it will be a problem, but if you hear things grinding or catching, you may want to rethink the setup.

I use a Phayee with the UV always attached. It basically encases the whole lens setup. I then attach the polarizer to the UV when needed. It is a nice setup.

Erik.
The fellow bought a snap on adapter why are you pushing somehting else?

[emalvick]

The fellow bought a snap on adapter why are you pushing somehting else?

I'm not pushing, I'm explaining my concern over the setup just as he did in the first place. Considering the tolerances that these cameras are built to, it won't suprise me that what little weight is on the lens may be enough that after a few hundred repetitions of on and off that things may begin to grind or fall out of the tolerances.

Then again, it may not happen. But if the original poster is seeing increased vibrations from without the snap on, my engineer background tells me that fatigue will become a factor, and that the system will fail sooner or later... hopefully later.

Erik

[Anex]

I believe he's hinting that snap on adapters are not a recommended way to go. I sure as heck would never recommend it...

[herc182]

what is the advantage of using the two together (UV and polarisor)? what will that mean in terms of photo effects?

I think the snap on is very sturdy but an adapter wil be the better long term solution (like the phayee).

thanks for your feedback.

Emalvick what is your engineering background (out of interest?). i am a civil engineer at present!

[emalvick]

I am an earthquake and dam engineer (civil). I do realize that is a far stretch from what a camera is made from, but the lens is nothing more than a canteliever, and I would have my concerns putting weight on the end of it.

Of course I don't own the snap on filter, and haven't observed the filters on the end of the lens... It is just my gut instinct that tells me it could be a problem.

Anyway, I can answer your question. It is best to think of the two filters seperately and then add their effects together. The main reason is that the UV filter will do almost nothing in terms of effects with your camera. UV filters were developed to control UV light and its affect on film. Why have a UV? Well, UV filters are nice because they are relatively cheap and act as lens protection. You can always use them because they don't affect the exposure or lighting at all. I haven't taken mine off since I put it on.

The polarizer as has been mentioned before is used to remove glare, reflections, see through water, remove haze in the sky, improve the sky, etc.

Putting both together basically provides the advantages of both. Technically, you don't need to stack them, but it is kind of easier to just stack them then to switch them off. You could call it laziness I suppose.

In other instances, stacking filters will give you the effects of each filter added together. So if you use a ND filter with a Polarizing filter. You get the darkening of the ND filter + the anti-glare (and darkening) of the polarizer. You would also reduce the f-stops by the sum of both filters. (That is just an example).

I hope this answers your question... I found a polarizer quite useful yesterday as I was shooting photos of reservoirs in Southern Cal. where they had a moderate earthquake the other day. It saved my images from reflection and glare off the water.

Erik

[Anex]

yup, a polarizer is great for adding some extra zip to ourdoor photography.

--- http://www.tiffen.com/Filter_&_Lens_Brochure/BFILT_cover2.htm ---

^ shows some good examples of the affects...

[herc182]

i almost became an earth quake engineer, and still might. very interesting but also very difficult. worked with Dr bommer and elgazouli at imperial college.

will try out the filters next time i get t he chance.

looking forward to using the polarisor, to reduce the time i spend on photoshop!

thanks folks

[emalvick]

As alluded to earlier. Polarizers are great, and I am guessing they will really save on photoshop, since it is nearly impossible to do what they do in photoshop. I almost never have to do any retouching now with the polarizer.

Erik

[LoveLife]

I'm not pushing, I'm explaining my concern over the setup just as he did in the first place. Considering the tolerances that these cameras are built to, it won't suprise me that what little weight is on the lens may be enough that after a few hundred repetitions of on and off that things may begin to grind or fall out of the tolerances.

Then again, it may not happen. But if the original poster is seeing increased vibrations from without the snap on, my engineer background tells me that fatigue will become a factor, and that the system will fail sooner or later... hopefully later.

Erik
The snap on ring may not be what you and I think is correct but it will support one or two stacked filters. I was developing a new adapter product for the FZ and I was amazed at its resiliency. I was checking a work in process prototype to see the fit on the camera. I forgot that the adapter was not milled to the correct internal size and turned on the unit. The barrel made three attempts to seat correctly and finally wedged into the undersized chamber. I shut it off put on the lens cap and pushed the barrel back in. I thought that was it. Six months latter, I am still using the FZ10 with no sign of focus or zoom problems. Well-done Panasonic. It is normal for the barrel to show some lateral movement. My only caution is that once the snap on thread is installed leave it alone.