OPTOLONG 1.25" Filter H-Alpha 7Nm Narrowband Astronomical Photographic Filters for Monocular Telescope
- Application: Camping
Precise details:
Description:
Because H-A is 656nm mainly through the high permeability of the spectrum, and 656nm spectrum of the color presented by the red-based, 300-1100nm cut-off depth to make the details of launching nebula more rich. Extremely narrow bandwidth only allows the 656nm band to pass through the filter, can effectively cut off the artificial light Na lamp and Hg lamp interference to the transmission line through, in order to enhance the nebula contrast. With CCD is better choice for deep sky photography and wide field astrophotography.
Specifications:
Size |
1.25 Inch |
Central wavelength |
656.3nm |
Half bandwidth |
7nm |
Peak transmittance |
<85% |
Cut-off range |
300-1100nm |
Cut-off depth |
OD3 |
Finish |
60/40 |
Face shape |
λ/4 |
Parallelism |
30 seconds |
Thread |
M28.5 * 0.6 |
Features:
- High cutoff is effective, it is light damage and other stray light interference
- Use Germany Selected glass, with double-sided polishing processing
- For the emission line 656nm transmittance of 85% or more
- Frame with high quality aluminum alloy material, anodized extinction treatment
- With SII, H-Alpha, OIII shooting, that SHO Filter, post-synthesis "Hubble"
- The narrow-band filter, even in areas where light pollution is heavy, and the full moon (the moon's largest and brightest) is the same, very narrow bandwidth, which reduces the interference from the external environment, but the haze and cloudy The weather is not possible.
- Box PP environmentally friendly materials, simple and beautiful
- Lined with double-layer EVA cushioning cotton
- Precision CNC integrated molding
- Multi-layer anti-reflection coating
Package Included:
1 * 1.25 Inch H-Alpha 7nm Filter
1 * PP Plastic Box
Application | Camping |
(1) FREE Shipping 10 - 15 business days, (2) Standard Shipping 7 - 12 business days.
Shipping and Delivery Estimates
We ship in-stock orders as soon as possible. This is often within two business days, but there are situations where it may take longer. All estimates are based on business days.
Note:
(1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.
(2) Business days do not include Saturday/Sunday and any public holidays.
(3) These estimates are based on normal circumstances and are not a guarantee of delivery times.
(4) We are not responsible for the failures or delays in delivery resulting from any force majeure event, such as natural disaster, bad weather, war, customs issues, and any other event beyond our direct control.
for more information please visit our Shipping Policy Page.
Sizing & Fit Guide
Please be aware that most of our clothing is Juniors' sizing, which runs smaller than regular US / European Women sizing. Refer to the measurements chart for each individual product to determine the best size for you. Product specific size chart and information can be found in product description or in product picture gallery.
Our team does it's best to include accurate size details and measurement of each item in the product descriptions. If you have questions regarding sizing or any other information on a specific item, please email us at support@mrslm.com for specific details.
Find the best size
When comparing your measurements to those listed on the site, make sure to check if the fabric is stretchy or not. If it is, it can stretch an inch or more.
- Bust: Wrap the measuring tape loosely around the fullest part of your bust to ensure a comfortable fit.
- Waist: Measure the narrowest part of your natural waist, holding the measuring tape loose enough to fit comfortably.
- Hips: Drape the measuring tape around the widest part of your hips, resting the tape comfortably against your body.
- Length: For tops and dresses, measure from the top of your shoulder to the hem. For strapless dresses, measure from the highest part of the neckline to the hem. For pants and skirts, measure from the top of the waist to the hem.
- Sleeve: With your arm outstretched, measure from the base of your neck to the end of the sleeve hem to determine where the sleeve length will fall on you.
Size Chart
Dresses Size Chart
DRESSES SIZE IN INCHES |
||||
SIZE | US / CAN | BUST | WAIST | HIPS |
XS | 0 | 31"-32" | 24"-25" | 34"-35" |
S | 2-4 | 33"-34" | 26"-27" | 36"-37" |
M | 6-8 | 35"-36" | 28"-29" | 38"-39" |
L | 10-12 | 37"-39" | 30"-32" | 40"-42" |
XL | 14 | 40"-42" | 33"-35" | 43"-45" |
DRESSES SIZE IN CM |
||||
SIZE | US / CAN | BUST | WAIST | HIPS |
XS | 0 | 78.7-81.2 | 60.9-63.5 | 86.3-88.9 |
S | 2-4 | 83.8-86.3 | 66-68.5 | 91.4-93.9 |
M | 6-8 | 88.9-91.4 | 71.1-73.6 | 96.5-99 |
L | 10-12 | 93.9-99 | 76.2-81.2 | 101.6-106.6 |
XL | 14 | 101.6-106.6 | 81.2-88.9 | 109.2-114.3 |
Tops Size Chart
TOPS SIZE IN INCHES |
|||
SIZE | US / CAN | BUST | WAIST |
XS | 0 | 31"-32" | 24"-25" |
S | 2-4 | 33"-34" | 26"-27" |
M | 6-8 | 35"-36" | 28"-29" |
L | 10-12 | 37"-39" | 30"-32" |
XL | 14 | 40"-42" | 33"-35" |
TOPS SIZE IN CM |
|||
SIZE | US / CAN | BUST | WAIST |
XS | 0 | 78.7-81.2 | 60.9-63.5 |
S | 2-4 | 83.8-86.3 | 66-68.5 |
M | 6-8 | 88.9-91.4 | 71.1-73.6 |
L | 10-12 | 93.9-99 | 76.2-81.2 |
XL | 14 | 101.6-106.6 | 83.8-88.9 |
Bottoms Size Chart
BOTTOMS SIZE IN INCHES |
|||
SIZE | US / CAN | WAIST | HIPS |
XS | 0 | 24"-25" | 34"-35" |
S | 2-4 | 26"-27" | 36"-37" |
M | 6-8 | 28"-29" | 38"-39" |
L | 10-12 | 30"-32" | 40"-42" |
XL | 14 | 33"-35" | 43"-45" |
BOTTOMS SIZE IN CM |
|||
SIZE | US / CAN | WAIST | HIPS |
XS | 0 | 60.9-63.5 | 86.3-88.9 |
S | 2-4 | 66-68.5 | 91.4-93.9 |
M | 6-8 | 71.1-73.6 | 96.4-93.9 |
L | 10-12 | 76.2-81.2 | 101.6-106.6 |
XL | 14 | 83.8-88.9 | 109.2-114.3 |
Denim Size Chart
DENIM SIZE IN INCHES |
||||
WAIST SIZE | JUNIOR SIZING | WAIST | LOW WAIST | HIPS |
24 | 0 | 24"-25" | 26"-27" | 32"-33" |
25 | 1 | 25"-26" | 28"-29" | 33"-34" |
26 | 3 | 26"-27" | 30"-31" | 34"-35" |
27 | 5 | 27"-28" | 31"-32" | 35"-36" |
28 | 7 | 28"-29" | 32"-33" | 36"-37" |
29 | 9 | 29"-30" | 33"-34" | 37"-38" |
30 | 11 | 30"-31" | 34"-35" | 38"-39" |
31 | 13 | 31"-3" | 35"-36" | 39"-40" |
32 | 15 | 32"-33" | 36"-37" | 40"-41" |
DENIM SIZE IN CM |
||||
WAIST SIZE | JUNIOR SIZING | WAIST | LOW WAIST | HIPS |
24 | 0 | 60.9-63.5 | 66-68.5 | 81.2-83.8 |
25 | 1 | 63.5-66 | 71.1-73.6 | 83.8-86.3 |
26 | 3 | 66-68.5 | 76.2-78.7 | 86.3-88.9 |
27 | 5 | 68.5-71.1 | 78.7-81.2 | 88.9-91.4 |
28 | 7 | 71.1-73.6 | 81.2-83.8 | 91.4-93.9 |
29 | 9 | 73.6-76.2 | 83.8-86.3 | 93.9-96.5 |
30 | 11 | 76.2-78.7 | 86.3-88.9 | 96.5-99 |
31 | 13 | 78.7-81.2 | 88.9-91.4 | 99-101.6 |
32 | 15 | 81.2-83.8 | 91.4-93.9 | 101.6-104.1 |
Swimwear Size Chart
SWIMWEAR SIZE IN INCHES |
||||
SIZE | US / CAN | BUST | WAIST | HIPS |
XS | 0 | 31"-32" | 24"-25" | 33"-34" |
S | 2 | 33"-34" | 26"-27" | 35"-37" |
M | 4 | 35"-36" | 28"-29" | 37"-38" |
L | 6 | 37"-39" | 30"-32" | 39"-41" |
XL | 8 | 40"-42" | 33"-35" | 42"-44" |
SWIMWEAR SIZE IN CM |
||||
SIZE | US / CAN | BUST | WAIST | HIPS |
XS | 0 | 78.7-81.2 | 60.9-63.5 | 83.8-86.3 |
S | 2 | 83.8-86.3 | 66-68.5 | 88.9-93.9 |
M | 4 | 88.9-91.4 | 71.1-73.6 | 93.9-96.5 |
L | 6 | 93.9-99 | 76.2-81.2 | 99-104.1 |
XL | 8 | 101.6-106.6 | 81.2-88.9 | 106.6-111.7 |
Shoes Size Chart
US | EURO | UK | AUS | JAPAN | CHINA |
5 | 35-36 | 3 | 3.5 | 21.5 | 35 |
5.5 | 36 | 3.5 | 4 | 22 | 35.5 |
6 | 36-37 | 4 | 4.5 | 22.5 | 36 |
6.5 | 37 | 4.5 | 5 | 23 | 36.5 |
7 | 37-38 | 5 | 5.5 | 23.5 | 37 |
7.5 | 38 | 5.5 | 6 | 24 | 37.5 |
8 | 38-39 | 6 | 6.5 | 24.5 | 38 |
8.5 | 39 | 6.5 | 7 | 25 | 38.5 |
9 | 39-40 | 7 | 7.5 | 25.5 | 39 |
9.5 | 40 | 7.5 | 8 | 26 | 39.5 |
10 | 40-41 | 8 | 8.5 | 26.5 | 40 |
11 | 41-42 | 9 | 9.5 | 27.5 | 41 |
Attention: This guide provides general sizing information only, and fit can vary depending on style and brand. For more specific sizing information on the product, please refer to product description.
NOTE:
- All models are wearing size small in tops and dresses, and size 1, 3, or 5 in jeans depending on their body type.
- Most kalles jeans & dresses have some stretch, please refer to product description for fabric details.
- Most kalles bottoms have an inseam of 31-34” depending on the cut and style. Sizing may vary depending on cut and style.