I would like to know if it makes any difference in optical quality if I mount my UV filter on the lens and then mount the shade on the UV filter or is it OK to mount the lens shade on the lens and then mount the UV filter in the shade. As can be seen, mounting the filter inside the shade makes the combo slightly shorter. TIA
It probably makes little difference, but where it is possible I put the filter on the lens then attach the lens hood to the filter. Part of my rationale is that I generally will use the filter without the hood but not the hood without the filter. The other rationale is that the closer it is to the lens, the less the impact it may have on the image - though I have no support for that idea.
Assuming the hood does not vignette with the filter first, hood second, then that is the preferable way to do it. The purpose of the hood is to reduce stray light from hitting glass surfaces, which it will do slightly better with the filter first. The hood looks so shallow that there is probably liitle point in using it with the filter in the hood.
gaopa wrote:
I would like to know if it makes any difference in optical quality if I mount my UV filter on the lens and then mount the shade on the UV filter or is it OK to mount the lens shade on the lens and then mount the UV filter in the shade. As can be seen, mounting the filter inside the shade makes the combo slightly shorter. TIA
Filter on lens then shade on filter is 'normal' as most hoods don't have a thread for filter. Small risk of vignetting as hood further forward, so check for corner 9shading a tminimum aperture.
Filter inside hood gives less shading of the filter so more chance of flare from it.
Gerry
I called Fuji Tech Support 800 800 3854 and was told that putting the filter in the shade would not degrade the image. Their response confirmed my experience.
Jack Flesher wrote:
Best practice is shade mounted to lens normally, filter inside shade when possible. It’s actually a benefit of bayonet mount shades…
Jack, my lens shade of preference is one with a bayonet mount.
Can't think of many recent lens purchases that have hoods that screw in to the same mount as filters, designers have provided quite a few ideas for mounting the hood separately to filters. Earliest I know is the Leica lenses, since the 1950s, they have had hoods that clip on, into a groove on the outside of the front ring. I have at least one modern Voigtlander that has an external thread on the outside of the front ring.
Jack Flesher wrote:
Best practice is shade mounted to lens normally, filter inside shade when possible. It’s actually a benefit of bayonet mount shades…
I'm not sure that is best practice so much as standard practice, given nearly all modern hoods bayonet mount to the lens with the filter mounting separately to the filter threads. With such a setup there is really no other way to mount both hood and filter. For the setup the op shows, i would go filter first then hood to maximise the depth of the hood from the glass. That is, providing there is no hard vignetting with such an arrangement.
Geoff D F wrote:
I'm not sure that is best practice so much as standard practice, given nearly all modern hoods bayonet mount to the lens with the filter mounting separately to the filter threads. With such a setup there is really no other way to mount both hood and filter. For the setup the op shows, i would go filter first then hood to maximise the depth of the hood from the glass. That is, providing there is no hard vignetting with such an arrangement.
Most screw on hoods I’ve ever used were threaded internally for filters. Perhaps el cheapo generic ones are not, so if it isn’t, stacking it is the only option.
