The 125C with coarse thread #12 Yellow Filter from Tiffen is a filter designed to increase contrast and tonal separation for black and white photography. The filter absorbs blue colors, rendering blues darker. Haze is minimized for aerial photography and excessive blue is removed for astrophotography. The #12 Yellow Filter is recommended as a basic filter for use with Kodak's Aero Ektachrome Infrared Film. The filter has a filter factor of 2, so you must increase by 1 full stop to your exposure to compensate.

Tiffen filters are not dyed, but are manufactured by using ColorCore technology. This process laminates the filter material between two pieces of optical glass and grinds down and polishes the glass. The glass is then mounted to the metal ring, which after that can be screwed onto the lens for the desired effect.

Builds Contrast in B&W Images    Absorbs Blue colors    Cuts Through Haze in Aerial Photography    For Kodak Aero Ektachrome Infrared Film    ColorCore Technology

Builds contrast in B&W images

Haze is eliminated for aerial photography

Absorbs blue colors

ColorCore technology

Related Questions and Answers

Q: 1. is this 12-60mm truly parfocal lens?I just saw a review that showed it was, but have not yet seen anyone else speak of this or prove also.

A: I am an amateur at best, but, from my understanding of a parfocal lens, I would say yes; it maintains crisp focus while moving from 12 to 60mm with or without the autofocus switched on.

Q: 2. Can you use the lens hood with the recommended Chiaro UV filter?

A: I don't know. Do not use a filer indoors.

Q: 3. This claims to have "micro step aperture control." How do you activate it with a Panasonic Lumix G9 II?

A: The Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 ASPH. POWER O.I.S. Lens (Micro Four Thirds) Micro Step Aperture Control is always available when changing the aperture priority while recording motion pictures. -M.

Q: 4. How many stops of stabilization does this have on a camera without IBIS?

A: Although Panasonic does not state a specific number of stops the stabilization provides in the Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 lens, it is safe to say it will be about 2-3 stops. But also when using a wider angle lens camera shake blur is less noticeable as compared to a telephoto lens. Plus by having an f2.8 aperture the lens can achieve faster shutter speeds which also help reduce the risk of camera shake blur.

Q: 5. Is the smooth aperture changes so there are no sudden jumps in exposure compatible with the GH4 ? I got it to work on my GH5 by setting auto-exposure mode and blocked ISO and Shutter Speed, but it doesn't seem to work on my GH4.

A: The Panasonic GH4 when using some of the newer lenses, works better in an "M", or "P" mode.

Q: 6. Is this lens compatible with an Olympus PEN Lite E-PL7 camera?

A: Yes Panasonic Leica DG Vario-Elmarit 12-60mm f/2.8-4 ASPH. POWER O.I.S. Lens is compatible with the Olympus PEN E-PL7 Mirrorless Micro Four Thirds Digital Camera

Q: 7. Why doesn't Panasonic put gear rings on lenses rather that make users install them over the standard rings?

A: The Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 ASPH. POWER O.I.S. Lens (Micro Four Thirds) is not a cine lens but can be used to capture video. Only cine lenses have a built-in gear ring.

Q: 8. Is there any opportunity to change camera to pal system ? Or to recond in 50 fps ?

A: I'm sorry but the G85 shoots in NTSC only.

Q: 9. Can I use the SmallRig Wireless Follow Focus Lite Kit or any other zoom controller to control the zoom ring on this lens?

A: Yes, you should be able to control the zoom of the Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 ASPH. POWER O.I.S. Lens (Micro Four Thirds) with the SmallRig Wireless Follow Focus Lite Kit.

Q: 10. Does this lens work on an Olympus camera?

A: The Panasonic Leica DG Vario-Elmarit 12-35mm f/2.8 ASPH. POWER O.I.S. Lens with Filter Kit (Micro Four Thirds) is cross-compatible with all Micro Four Thirds camera systems.