deep filters

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The LEE Filters 150 x 150mm #12 Deep Yellow Filter is a basic contrast filter, primarily for use with black and white film, that strongly darkens skies, reduces blues, and increases overall contrast. It is also suitable for some infrared and false color photography and helps to cut atmospheric haze. There is an approximate 1.3x filter factor with this filter, requiring an increase of 0.3 stop for normal exposure.

This filter is constructed from optically correct resin, measures 5.9 x 5.9" / 150 x 150mm, and is compatible with the LEE SW150 filter holder.
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  • #12 Filter for Enhanced B&W Contrast
  • 1.3x Filter Factor, +0.3 Stop
  • Resin Construction
  • Compatible with LEE SW150 Holder

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$155.00
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The LEE Filters 150 x 150mm #15 Deep Yellow Filter is a basic contrast filter, primarily for use with black and white film, that very strongly darkens skies and blues, increases contrast, and is often used for outdoor photography to emphasize contrast and shadows. There is an approximate 1.5x filter factor with this filter, requiring an increase of 0.6 stop for normal exposure.

This filter is constructed from optically correct resin, measures 5.9 x 5.9" / 150 x 150mm, and is compatible with the LEE SW150 filter holder.
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  • #15 Filter for Enhanced B&W Contrast
  • 1.5x Filter Factor, +0.6 Stop
  • Resin Construction
  • Compatible with LEE SW150 Holder

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Expected availability: 3-7 business days
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$155.00
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Engineered to take advantage of today's larger camera sensors, the Alpine Astronomical Baader Canon EOS Wide T-Ring System eliminates the vignetting that is common when using conventional T-rings, especially on faster systems. The modular design enables the use of an array of Baader 2" mounted or 50.4mm unmounted specialty filters such as O-III, H-alpha, luminance, or neutral density. It comes with three mounting options: a standard 42mm T-thread for conventional T-mount attachment, a low-profile 2" nosepiece to fit into diagonals and visual backs, and a standard 48mm astronomical filter thread. This system is specifically designed to match the Canon EOS bayonet mount. The T-ring assembly comes with a 50.4mm round unmounted hydrogen-alpha filter with a narrow 7nm bandpass. Intended for deep-sky use, it uniformly passes the maximum amount of bandwidth possible to virtually eliminate halos, reflections, and ghosting. It also completely rejects light pollution and blocks longer interfering wavelengths, enabling even the faintest deep-sky objects to be imaged regardless of where the user is located, and with shorter exposure times compared with other filters.
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Top Highlights

  • Canon EOS Bayonet Mount
  • For Filtered Astrophotography Images
  • 2" Mounted/50.4mm Unmounted Filters
  • Eliminates Vignetting on Fast Systems
  • Larger Aperture than Standard T-Rings
  • Three Telescope Mounting Options
  • Includes Deep-Sky H-alpha Filter

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Expected availability: 7-14 business days
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$357.00
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B&H # LUDSCRC MFR # LF3020

The best all-purpose nebula filter on the market today, the Lumicon Cassegrain Deep Sky Filter blocks all high & low-pressure mercury and sodium vapor lamp light, neon lights and airglow, while transmitting the rest of the visible spectrum.

The Cassegrain Deep Sky Filter threads onto your telescope's SCT rear-cell, and presents male SCT threads for accessory attachment.

Lumicon knows that all sky viewing is not done under the best of weather conditions. The Cassegrain filter cell allows you to change eyepieces without threading/unthreading the filter, and is also easier to change-out than the standard 2" filter cell with gloves on, for cold-weather observing.

The 1.25" filters employ industry-standard 1.125" x 42 tpi threads (except for Questar/Brandon, which use a thread pattern unique to Questar). The 48 mm filters employ industry-standard 48 x 0.75 mm threading, which thread into 2" eyepieces. All larger filters use the given size with 0.75 mm pitch (e.g. a 72 mm Minus Violet filter has 72 x 0.75 mm threads).

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  • For Schmidt-Cassegrain Scopes

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Expected availability: 7-14 business days
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$199.95
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The LEE Filters 100 x 100mm #12 Deep Yellow Filter is a basic contrast filter, primarily for use with black and white film, that strongly darkens skies, reduces blues, and increases overall contrast. It is also suitable for some infrared and false color photography and helps to cut atmospheric haze. There is an approximate 1.3x filter factor with this filter, requiring an increase of 0.3 stop for normal exposure.

This filter is constructed from optically correct resin, measures 3.9 x 3.9" / 100 x 100mm, and is compatible with the LEE 100mm filter holder.
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  • #12 Filter for Enhanced B&W Contrast
  • 1.3x Filter Factor, +0.3 Stop
  • Resin Construction
  • Compatible with LEE 100mm Holder

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Expected availability: 7-14 business days
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$120.00
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The LEE Filters 100 x 100mm #15 Deep Yellow Filter is a basic contrast filter, primarily for use with black and white film, that very strongly darkens skies and blues, increases contrast, and is often used for outdoor photography to emphasize contrast and shadows. There is an approximate 1.5x filter factor with this filter, requiring an increase of 0.6 stop for normal exposure.

This filter is constructed from optically correct resin, measures 3.9 x 3.9" / 100 x 100mm, and is compatible with the LEE 100mm filter holder.
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  • #15 Filter for Enhanced B&W Contrast
  • 1.5x Filter Factor, +0.6 Stop
  • Resin Construction
  • Compatible with LEE 100mm Holder

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Order now to ship Mon Nov 19
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$124.00
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This DF-30 Replacement Deep Pleated Filter from Primera is designed for the LP130's filtration system.
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Expected availability: 7-10 business days
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This item is noncancelable and nonreturnable.
$179.00
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B&H # FO6158 MFR # BF 58-BW61DGR

The Formatt 58mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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"I purchased this filter to try infrared effects, but have had marginal success so far."

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$67.50
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B&H # FO6167 MFR # BF 67-BW61DGR

The Formatt 67mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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"I'm giving this filter four stars only because Formatt Hitech is too cheap to spend a few cents more to include a case."

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$72.00
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B&H # FO6177 MFR # BF 77-BW61DGR

The Formatt 77mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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$72.00
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The LEE Filters 3 x 3" #12 Deep Yellow Polyester Filter is a basic contrast filter, primarily for use with black and white film, that strongly darkens skies, reduces blues, and increases overall contrast. It is also suitable for some infrared and false color photography and helps to cut atmospheric haze. There is an approximate 1.3x filter factor with this filter, requiring an increase of 0.3 stop for normal exposure.

This 3 x 3" / 76.2 x 76.2mm filter is manufactured from high-quality polyester materials, is durable and easy to clean, and can be cut-to-size or mounted within filter frames for use.
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  • #12 Filter for Enhanced B&W Contrast
  • 1.3x Filter Factor, +0.3 Stop
  • Polyester Construction
  • Can Be Cut-to-Size or Mounted in Frame

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Expected availability: 6-8 weeks
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$13.00
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The LEE Filters 6 x 6" #12 Deep Yellow Polyester Filter is a basic contrast filter, primarily for use with black and white film, that strongly darkens skies, reduces blues, and increases overall contrast. It is also suitable for some infrared and false color photography and helps to cut atmospheric haze. There is an approximate 1.3x filter factor with this filter, requiring an increase of 0.3 stop for normal exposure.

This 6 x 6" / 152.4 x 152.4mm filter is manufactured from high-quality polyester materials, is durable and easy to clean, and can be cut-to-size or mounted within filter frames for use.
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  • #12 Filter for Enhanced B&W Contrast
  • 1.3x Filter Factor, +0.3 Stop
  • Polyester Construction
  • Can Be Cut-to-Size or Mounted in Frame

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Expected availability: 3-7 business days
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$40.00
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The Formatt 37mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$67.50
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B&H # FO6140.5 MFR # BF 40.5-BW61DGR

The Formatt 40.5mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$67.50
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B&H # FO6143 MFR # BF 43-BW61DGR

The Formatt 43mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$67.50
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B&H # FO6148 MFR # BF 48-BW61DGR

The Formatt 48mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$67.50
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B&H # FO6152 MFR # BF 52-BW61DGR

The Formatt 52mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$67.50
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B&H # FO6162 MFR # BF 62-BW61DGR

The Formatt 62mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$67.50
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B&H # FO6172 MFR # BF 72-BW61DGR

The Formatt 72mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$72.00
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B&H # FO6182 MFR # BF 82-BW61DGR

The Formatt 82mm Deep Green 61 Filter is used to control contrast in black and white film. This filter is predominantly used when a strong black and white contrast is desired.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

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  • For Black and White Film
  • High Quality Schott Glass

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Expected availability: 7-14 business days
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$135.00
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