Tamron SP 300mm F/2.8 LD 107B

Super telephoto prime lens • Announced in 1983 • Film era • Discontinued

SP Professional lens with high quality optics and robust build. Meets the highest standards and provides excellent performance and flawless image quality unachievable with traditional optical technologies.
LD The lens incorporates low dispersion elements.
Tamron SP 300mm F/2.8 LD 107B

Model history

Tamron SP 300mm F/2.8 LD (IF) 360BAdaptall-2A10 - 72.5mE112 1993 
Tamron SP AF 300mm F/2.8 LD (IF) 360EA10 - 72.5mE112 1992 
Tamron SP AF 300mm F/2.8 LD (IF) 60EA10 - 72.5mE112 1990 
Tamron SP 300mm F/2.8 LD (IF) 60BAdaptall-2A10 - 72.5mE112 1984 
Tamron SP 300mm F/2.8 LD 107BAdaptall-2A7 - 63mE112 1983 

Specification

Optical design
Maximum format: 35mm full frame
Diagonal angle of view: 8.2° (35mm full frame)
Lens construction: 7 elements - 6 groups
2 LD
Floating element system
Mechanical design
Mount: Interchangeable mount
Interchangeable mount system: Adaptall-2
Diaphragm mechanism
Diaphragm type: Automatic
Number of blades: <No information>
Focusing
Closest focusing distance: 3m
Maximum magnification ratio: <No information>
Focusing method: <No information>
Focusing modes: Manual focus only
Manual focus control: Focusing ring
Physical characteristics
Weight: 2071g
Maximum diameter x Length: Ø117.5×199mm
Accessories
Filters: Screw-type 112mm
Additional features: Drop-in filter holder (43mm)
Lens hood: Bayonet-type 38FH (round)

Manufacturer description

The Tamron SP 300mm F/2.8 LD is a fast ultra-telephoto providing superb optical performance that meets even the needs of the most demanding professional photographers. It has a 7-element 6-group optical design using two low dispersion (LD) glass elements in the front group and employing Tamron's original OAC (Optical Aberration Compensator) system. This reduces chromatic aberration that is likely to occur on conventional telephoto lenses to the absolute minimum, resulting in superb descriptive performance from infinity to its minimum object distance (3.0 meters) for edge-to-edge sharp images. The fast 300mm F/2.8 ultra-telephoto not only provides superb optical performance but also excellent portability and handling convenience due to its compact design. It measures a mere 203.5mm with a mount for Nikon and has a convenient rear 43mm drop-in filter system for easy filter control and a detachable bayonet-type hood.

The Tamron SP 300mm F/2.8 LD offers outstanding performance features for the photographer who needs high shutter speeds and fast maximum apertures. In reduced light conditions, it is an ideal lens for sports, wildlife, press or stage photographers. The lens has a further advantage frequently preferred in this type of photography - shallower depth-of-field. The fast F/2.8 maximum aperture allows critical center subject sharpness to contrast attractively with out-of-focus backgrounds or foreground framing.

The optical design of the Tamron SP 300mm F/2.8 LD lens greatly reduces chromatic aberrations (too often a problem of the ultra-telephotos) and assures the photographer optimum image quality. The key to the outstanding image quality of this new Tamron lens is the use of anomalous dispersion (LD - low dispersion) glass in the two elements of the front group. This eliminates the second spectrum that becomes greater in proportion to focal lengths - and has effectively minimized chromatic aberration. At the same time, other aberrations such as spherical aberration, astigmatism and curvature of field also have been successfully minimized. The result is superior edge-to-edge sharpness and high contrast visual performance over the entire image field at both maximum aperture (F/2.8) and at smaller lens openings.

The lens also offers outstanding maneuverability in any photographic sitiation because of its compactness. It has a small 0.82 telephoto ratio - (the distance from the front element surface to the film plane/focal length). The lens is about 203.5mm in length and weighs 2071 grams.

The opportunities for creative photo work are enhanced by easy to use filter system. The Tamron SP 300mm F/2.8 LD lens is designed with a filter slot provided just in front of the aperture control ring. The lens' flange-back-distance (distance from the flange of the custom mount to the film plane) is adjusted to always operate with a 43mm rear filter (mounted in Tamron's exclusive filter frame) and one is provided with each lens. Other 43mm filters for special effects and a 112mm normal front filter are available.

A large bayonet lens hood effectively shields the lens from undesirable light sources and is supplied with the lens. It has fast one-touch mounting and removal with a single motion.

In both sports and wildlife photography, the lens is often used under high-temperature conditions. The white body helps reflect heat protecting the lens from the sun.

Typical application

distant subjects, distant landscapes with perspective compression effect, wild nature

Recommendations

  • Use of a tripod is recommended due to heavy weight of the lens.

Lenses with similar focal length and speed

Sorted by manufacturer name

Tamron SP 300mm F/2.8 LD (IF) 360BAdaptall-2Pro 1993 
Tamron SP 300mm F/2.8 LD (IF) 60BAdaptall-2Pro 1984 

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35mm full frame

43.27 24 36
  • Dimensions: 36 × 24mm
  • Aspect ratio: 3:2
  • Diagonal: 43.27mm

Travellers' choice

Note

Among autofocus lenses designed for 35mm full-frame mirrorless cameras only. Speed of standard and telephoto lenses is taken into account.

Professional lens

One of the best fast super telephoto primes

According to lens-db.com; among lenses designed for the same maximum format and mount.

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Quality control issues

The manufacturer of this lens does not provide adequate quality control. If you do decide to purchase this lens, do not order it online, but choose the best copy available in the store. In any case, there may also be problems with the build quality, and warranty repairs can take months.

Model produced in a small batch. It is collectible and can only be found on the secondary market.

Image stabilizer

A technology used for reducing or even eliminating the effects of camera shake. Gyro sensors inside the lens detect camera shake and pass the data to a microcomputer. Then an image stabilization group of elements controlled by the microcomputer moves inside the lens and compensates camera shake in order to keep the image static on the imaging sensor or film. The technology allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without image stabilizer you have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.

Classic focal length

Standard focal length of super telephoto lenses for 35mm full-frame cameras. Lenses of this class are designed primarily for sports and wildlife photography.

MF

Sorry, no additional information is available.

Drop-in filter holder

A drop-in filter holder with a neutral filter comes with the lens. The holder accepts 43mm filters. The filter holder must be always in place because the filter is a part of the lens optical system.

Aspherical elements

Aspherical elements (ASPH, XA, XGM) are used in wide-angle lenses for correction of distortion and in large-aperture lenses for correction of spherical aberration, astigmatism and coma, thus ensuring excellent sharpness and contrast even at fully open aperture. The effect of the aspherical element is determined by its position within the optical formula: the more the aspherical element moves away from the aperture stop, the more it influences distortion; close to the aperture stop it can be particularly used to correct spherical aberration. Aspherical element can substitute one or several regular spherical elements to achieve similar or better optical results, which allows to develop more compact and lightweight lenses.

Use of aspherical elements has its downsides: it leads to non-uniform rendering of out-of-focus highlights. This effect usually appears as "onion-like" texture of concentric rings or "wooly-like" texture and is caused by very slight defects in the surface of aspherical element. It is difficult to predict such effect, but usually it occurs when the highlights are small enough and far enough out of focus.

Low dispersion elements

Low dispersion elements (ED, LD, SD, UD etc) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. This type of glass exhibits low refractive index, low dispersion, and exceptional partial dispersion characteristics compared to standard optical glass. Two lenses made of low dispersion glass offer almost the same performance as one fluorite lens.

Low dispersion elements

Low dispersion elements (ED, LD, SD, UD etc) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. This type of glass exhibits low refractive index, low dispersion, and exceptional partial dispersion characteristics compared to standard optical glass. Two lenses made of low dispersion glass offer almost the same performance as one fluorite lens.

Canon's Super UD, Nikon's Super ED, Pentax' Super ED, Sigma's FLD ("F" Low Dispersion), Sony' Super ED and Tamron's XLD glasses are the highest level low dispersion glasses available with extremely high light transmission. These optical glasses have a performance equal to fluorite glass.

High-refraction low-dispersion elements

High-refraction low-dispersion elements (HLD) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

High Index, High Dispersion elements

High Index, High Dispersion elements (HID) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

Anomalous partial dispersion elements

Anomalous partial dispersion elements (AD) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

Fluorite elements

Synthetic fluorite elements (FL) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. Compared with optical glass, fluorite lenses have a considerably lower refraction index, low dispersion and extraordinary partial dispersion, and high transmission of infrared and ultraviolet light. They are also significantly lighter than optical glass.

According to Nikon, fluorite easily cracks and is sensitive to temperature changes that can adversely affect focusing by altering the lens' refractive index. To avoid this, Canon, as the manufacturer most widely using fluorite in its telephoto lenses, never uses fluorite in the front and rear lens elements, and the white coating is applied to the lens barrels to reflect light and prevent the lens from overheating.

Short-wavelength refractive elements

High and specialized-dispersion elements (SR) refract light with wavelengths shorter than that of blue to achieve highly precise chromatic aberration compensation. This technology also results in smaller and lighter lenses.

Blue Spectrum Refractive Optics

Organic Blue Spectrum Refractive Optics material (BR Optics) placed between convex and concave elements made from conventional optical glass provides more efficient correction of longitudinal chromatic aberrations in comparison with conventional technology.

Diffraction elements

Diffraction elements (DO, PF) cancel chromatic aberrations at various wavelengths. This technology results in smaller and lighter lenses in comparison with traditional designs with no compromise in image quality.

High refractive index elements

High refractive index elements (HR, HRI, XR etc) minimize field curvature and spherical aberration. High refractive index element can substitute one or several regular elements to achieve similar or better optical results, which allows to develop more compact and lightweight lenses.

Apodization element

Apodization element (APD) is in fact a radial gradient filter. It practically does not change the characteristics of light beam passing through its central part but absorbs the light at the periphery. It sort of softens the edges of the aperture making the transition from foreground to background zone very smooth and results in very attractive, natural looking and silky smooth bokeh.

Format

Format refers to the shape and size of film or image sensor.

35mm is the common name of the 36x24mm film format or image sensor format. It has an aspect ratio of 3:2, and a diagonal measurement of approximately 43mm. The name originates with the total width of the 135 film which was the primary medium of the format prior to the invention of the full frame digital SLR. Historically the 35mm format was sometimes called small format to distinguish it from the medium and large formats.

APS-C is an image sensor format approximately equivalent in size to the film negatives of 25.1x16.7mm with an aspect ratio of 3:2.

Medium format is a film format or image sensor format larger than 36x24mm (35mm) but smaller than 4x5in (large format).

Angle of view

Angle of view describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view.

As the focal length changes, the angle of view also changes. The shorter the focal length (eg 18mm), the wider the angle of view. Conversely, the longer the focal length (eg 55mm), the smaller the angle of view.

A camera's angle of view depends not only on the lens, but also on the sensor. Imaging sensors are sometimes smaller than 35mm film frame, and this causes the lens to have a narrower angle of view than with 35mm film, by a certain factor for each sensor (called the crop factor).

This website does not use the angles of view provided by lens manufacturers, but calculates them automatically by the following formula: 114.6 * arctan (21.622 / CF * FL),

where:

CF – crop-factor of a sensor,
FL – focal length of a lens.

Mount

A lens mount is an interface — mechanical and often also electrical — between a camera body and a lens.

A lens mount may be a screw-threaded type, a bayonet-type, or a breech-lock type. Modern camera lens mounts are of the bayonet type, because the bayonet mechanism precisely aligns mechanical and electrical features between lens and body, unlike screw-threaded mounts.

Lens mounts of competing manufacturers (Canon, Nikon, Pentax, Sony etc.) are always incompatible. In addition to the mechanical and electrical interface variations, the flange focal distance from the lens mount to the film or sensor can also be different.

Lens construction

Lens construction – a specific arrangement of elements and groups that make up the optical design, including type and size of elements, type of used materials etc.

Element - an individual piece of glass which makes up one component of a photographic lens. Photographic lenses are nearly always built up of multiple such elements.

Group – a cemented together pieces of glass which form a single unit or an individual piece of glass. The advantage is that there is no glass-air surfaces between cemented together pieces of glass, which reduces reflections.

Floating element system

Provides correction of aberrations and ensures constantly high image quality at the entire range of focusing distances from infinity down to the closest focusing distance. It is particularly effective for the correction of field curvature that tends to occur with large-aperture, wide-angle lenses when shooting at close ranges.

Closest focusing distance

The minimum distance from the focal plane (film or sensor) to the subject where the lens is still able to focus.

Closest working distance

The distance from the front edge of the lens to the subject at the maximum magnification.

Magnification ratio

Determines how large the subject will appear in the final image. A magnification ratio of 1:1 means that the image of the subject formed on the film or sensor will be the same size as the subject in real life. For this reason, a 1:1 ratio is often called "life-size". A lens is not considered to be "true" macro unless it can achieve at least life-size magnification.

Electromagnetic diaphragm control system

Provides highly accurate diaphragm control and stable auto exposure performance during continuous shooting.

Convex protruding front element

The convex front element protrudes from the lens barrel, making it impossible to use filters.

Manual diaphragm

The diaphragm must be stopped down manually by rotating the detent aperture ring.

Preset diaphragm

The lens has two rings, one is for pre-setting, while the other is for normal diaphragm adjustment. The first ring must be set at the desired aperture, the second ring then should be fully opened for focusing, and turned back for stop down to the pre-set value.

Semi-automatic diaphragm

The lens features spring mechanism in the diaphragm, triggered by the shutter release, which stops down the diaphragm to the pre-set value. The spring needs to be reset manually after each exposure to re-open diaphragm to its maximum value.

Automatic diaphragm

The camera automatically closes the diaphragm down during the shutter operation. On completion of the exposure, the diaphragm re-opens to its maximum value.

Weight

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

Maximum diameter x Length

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

For lenses with collapsible design, the length is indicated for the working (retracted) state.

Weather sealing

A rubber material which is inserted in between each externally exposed part (manual focus and zoom rings, buttons, switch panels etc.) to ensure it is properly sealed against dust and moisture.

Lenses that accept front mounted filters typically do not have gaskets behind the filter mount. It is recommended to use a filter for complete weather resistance when desired.

Fluorine coating

Helps keep lenses clean by reducing the possibility of dust and dirt adhering to the lens and by facilitating cleaning should the need arise. Applied to the outer surface of the front and/or rear lens elements over multi-coatings.

Filters

Lens filters are accessories that can protect lenses from dirt and damage, enhance colors, minimize glare and reflections, and add creative effects to images.

Lens hood

A lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare. Flare occurs when stray light strikes the front element of a lens and then bounces around within the lens. This stray light often comes from very bright light sources, such as the sun, bright studio lights, or a bright white background.

The geometry of the lens hood can vary from a plain cylindrical or conical section to a more complex shape, sometimes called a petal, tulip, or flower hood. This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood.

Lens hoods are more prominent in long focus lenses because they have a smaller viewing angle than that of wide-angle lenses. For wide angle lenses, the length of the hood cannot be as long as those for telephoto lenses, as a longer hood would enter the wider field of view of the lens.

Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space. In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.