Screamin Scott wrote:
For your reading pleasure about the meniscus lenses on the front of certain Nikkor lenses. Not exactly designed for damage protection..... "ML- Meniscus Protective Lens
An arched meniscus protecting glass element is placed in the front end of the optical lens to diminish ghosting by diffusing illumination re-reflected back from the sensor or film plane and the protection glass. By employing a meniscus protecting lens make certain of a bright image with minimum ghosting Nikon has customarily integrated their optical and mechanical lenses and carefully put into practice to thwart internal reflections, and the meniscus elements succeed in curtailing ghosting that can happen when reflected illumination off a camera’s digital image sensor travels back up the barrel of a lens and reflects off a flat plain protective glass element."
For your reading pleasure about the meniscus lense... (
show quote)
A meniscus filter means that it is curved on one side and flat on the other unlike a flat on both sides, PLANO, filter.
It is still a filter, just a more useful one, and it is clearly protective as well as optical.
I don’t use cheap filters, but I do use filters.
They do have a life cycle.
No matter how fine your lens cleaning cloth may be, it is abrasive.
No matter how gentle your lens cleaning motion may be, it is abrasive.
No matter how mild your lens cleaning solution may be, it is a solvent.
No matter how gently your blower moves dirt, it still blows grit across the surface.
No matter how lightly you clean the front element of a lens, you are doing damage however slight it may be.
I have lenses that I have owned for decades without cleaning the front element. They, to this day, look like new.
When I remove a filter I immediately place a lens cap on the front of the lens.
As soon as I see the most minute damage on a filter I bin it.
The reflection argument IMHO doesn’t hold up as long as one uses s lens hood.
I also always use a lenshood.
I protect my gear fanatically.
If someone sold a junkyard dog filter to keep danger away from my gear, I would buy it.
My $0.02. YMMV.