Photography Techniques Tech

Shooting With Kolari Vision 720nm and 850nm Anti-Reflective External Infrared Filters

Kolari Vision Filters

I upgraded from an infrared-converted Nikon D7200/720nm to a Nikon D750/550nm mixture this previous spring. Though I suspected the D750/550nm filter would suffice for many of my infrared wants, I used to be hesitant to forego the brilliant whites produced by the 720nm filter. As such, I made a decision to check two of Kolari Vision’s exterior filters to find out how nicely they might carry out on my D750/550nm configuration.

Mirrorless or DSLR?

However first… somewhat diversion. Earlier than deciding on the Nikon D750, I thought-about buying a Sony A7 mirrorless digital camera for my infrared wants. Why? Mirrorless cameras supply a definite benefit over their DSLR counterparts for infrared images: the digital viewfinder offers the power to see your picture by way of the viewfinder, no matter which infrared filter is hooked up to your lens. When you connect a 720nm filter in your lens mounted on a 550nm transformed DSRL, nevertheless, you see nothing however darkness as a result of the optical viewfinder can’t see via your nearly-black 720nm filter. Nikon’s LiveView gives a approach round this conundrum, however you both have to carry your digital camera away out of your physique to view the again of your LCD (not a really engaging proposition if in case you have a bigger lens corresponding to a Tamron 70-200mm f/2.eight G2 or 150-600mm G2 on the entrance of your DSLR) or be tethered to a tripod. Since I typically transfer at a reasonably fast tempo, combining a cardio exercise with my images outings, neither of those choices was very interesting.

I thought-about ready for Nikon’s impending mirrorless FX digital camera however knew it’d take me a great lengthy whereas to acquire one. And after recalling a few of the issues with Nikon’s new DSLR introductions, I made a decision to attend for the product critiques and assessments of the preliminary manufacturing runs. I used to be properly alongside the best way of buying a Sony A7 however got here throughout a couple of photographers who had used each the Sony mirrorless and Nikon DSLR FX platforms for infrared images. Helen Bradshaw, particularly, was very beneficiant together with her time, outlining her experiences, (Thanks, Helen!) and contrasting the 2 platforms. After in depth correspondence with Helen and performing some further researching of my very own, I settled on the Nikon D750 for the explanations under:

  • Sony nonetheless has a comparatively restricted set of native mirrorless lenses thought-about to be good performers with infrared mild.
  • The Sony lenses I might contemplate didn’t seem to supply good worth relative to their value.
  • Nikon had many extra lenses (together with these from third events) that carry out properly with IR at affordable worth factors.
  • Since I already had a collection of Nikon F-mount lenses, I used to be not passionate about buying an overlapping vary of Sony lenses, not to mention carrying them round in my backpack.
  • I didn’t sit up for studying one other digital camera menu system.
  • The suggestions I acquired relating to the Sony menu system was not very constructive.
  • Nasim provided me one a grey market D750 for an excellent worth and threw in a Sunway Photograph L bracket.
  • Helen Bradshaw suggestion utilizing a Hoodman unit with Nikon LiveView, enabling me to carry the digital camera towards my eye, enabling me to scale back digital camera shake.
  • I discovered a Hoodman Reside View Package permitting me to firmly connect the Hoodman unit to my D750 (extra under).
  • I had already been contemplating a Hoodman loupe as a result of I typically discover it troublesome to see my LCD on sunny days.

1. Construct High quality

The Kolari Vision filters got here packed in foam-padded instances. The filter’s metallic rings felt very sturdy and had a collection of clean ridges making it straightforward for my fingers to understand and flip the filter. The filters threaded onto my lenses and adapter rings with just some flicks of my wrist.

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That is of specific significance if, like me, you’ll shoot a scene utilizing a number of filters and connect them with solely two or three fast turns. Utilizing a filter with poor high quality threads will make this harder and may end up in your filter ending up in items on the bottom.

2. Utilizing the Hoodman Loupe and Bracket

I discovered the Hoodman Stay View Package extraordinarily sturdy, regardless of its mild weight. As soon as hooked up to my DSLR, the bracket was rock-solid. It was simply as sturdy when hooked up to my tripod. The loupe match my D750’s LCD completely. I used to be capable of modify the diopter for my imaginative and prescient, which now requires me to put on studying glasses. The optics have been very sharp. The one disadvantage when capturing with LiveView and the Hoodman unit was my forgetting to show LiveView off, which I shortly discovered can quickly drain your battery.

Hoodman Loupe & BracketHoodman Loupe & BracketHoodman Loupe & BracketHoodman Loupe & BracketHoodman Loupe & BracketHoodman Loupe & Bracket

I used to be capable of finding the Hoodman loupe and bracket on sale at a big low cost from the record worth. There are different methods to connect a Hoodman loupe to your DSLR. My good associates, Mark & Emilly Fagan, shared an image of their progressive, patent-pending Hoodman Loupe Bracket. It has allegedly stood up very properly to date underneath extraordinarily harsh and demanding circumstances. They’re at present taking pre-orders for the unit in case you are 😉

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If the Hoodman Reside View Package and Fagan Patent-Pending Hoodman Loupe Bracket are out of your worth vary, I’ve heard these mini-bungee cords additionally do a wonderful job in attaching a Hoodman loupe to your DSLR.

three. White Stability

As I mentioned in my earlier article, capturing with totally different IR filters requires both a custom-made white stability per filter or a single white stability setting enabling you to view your pictures taken with any filter. I selected the latter strategy as a result of I didn’t need to have to vary the white stability settings in my D750 menu every time I modified the filter. I settled on the white stability setting of 2700/6 in my Nikon menu.

44 Anti-Reflective Coating

Kolari Vision launched the Anti-Reflective coating a number of years in the past in an try to beat the dreaded “hot spot” drawback. Scorching spots (an space within the middle of your photograph often lighter than the encompassing picture) are brought on by the coatings used on lenses and mild reflecting off the internal lens parts and lens housing. There are a selection of sources out there on the web relating to which lenses are topic to hotspots and underneath which circumstances you’re more likely to encounter them.

Since infrared accounts for the majority of my images outings, I solely buy lenses with good infrared scores. Even so, I’ve observed even venerable performers (often zooms) such because the Nikon 16-85mm can, beneath sure circumstances (usually on the bottom finish of the focal vary), produce slight shade shifts within the middle. Understanding each lens is able to producing one thing lower than an ideal infrared publicity, I started utilizing Kolari Vision’s Anti-Reflective inner filters on my DSLRs a couple of years in the past, together with my new D750/550nm mixture. The exterior IR 720nm and 850nm filters reviewed right here even have the Anti-Reflective coating.

Whereas I’ve not completely examined the Anti-Reflective coating, I’ve mentioned the matter extensively with Ilija of Kolari Vision and reviewed the outcomes of his exams and these of others, corresponding to Mark Hilliard, who’ve examined the Anti-Reflective filter. I’ve observed my have to right anomalies in my infrared photographs has dropped off significantly since I transformed to Kolari Vision’s Anti-Reflective coated glass. Within the worst case, I make a really small adjustment utilizing Lightroom’s Radial Filter software If this doesn’t utterly handle the difficulty, I’ll make a slight tweak to the blue channel in Photoshop’s Curves software utilizing a layer masks.

No lens is ideal and no coating can utterly forestall hotspots, however Kolari Vision’s Anti-Reflective coating seems to scale back their impression and thus the efforts required to right them.

5. Sharpness

I observed no lack of sharpness utilizing both of the filters. My Tamron 24-70mm f/2.eight G2 and Nikon 28-300mm lenses produced wonderful outcomes with each exterior filters.

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6. Pattern Photographs

Listed here are a number of photographs I took with my 550nm-converted D750, the Hoodman unit, and the Kolari Vision exterior filters.

6.1 Pittsburgh Skyline

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6.2 Calgary Catholic Cemetery

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7. 720nm vs. 850nm

The 850nm filter produces brighter whites than the 720nm filter. However as these two photographs under present, the 720nm, with some post-processing tweaks, can produce outcomes similar to these of the 850nm. As a result of the 720nm filter captures some seen mild (the 850nm screens out all seen mild), it gives extra processing latitude (black and white layers and luminosity masks) than the 850nm filter. Within the instance under, I just like the outcomes of the 720nm higher than these of the 850nm. The colour current within the 720nm filter enabled me to regulate the tones related to the blue channel within the black and white layer, attaining a richer, extra dramatic impact.

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eight. 550nm or 720nm?

As I’ve indicated in different articles, the 550nm, with a little bit of post-processing magic, can obtain outcomes fairly just like these of the 720nm filter, however solely in ultimate lighting circumstances. In shiny daylight (as within the footage under), the excellence between the filters could be troublesome to note, particularly to untrained eyes. Nevertheless, the 550nm filter can by no means persistently mimic the outcomes of the 720nm filter. If I used to be given a selection of capturing infrared however restricted to a single filter? Regardless of the pliability of the 550nm (or 590nm), I might decide the 720nm each time.

Are you able to inform which image was taken with the 720nm vs. 550nm filter? Trace: Footage taken with the 550nm filter will all the time add a creamy look to the yellow tones and it’s far more troublesome (in some instances, unimaginable) to get vibrant, crisp yellowish-white tones in post-processing.


9. Abstract

I’ve been extraordinarily happy with the outcomes and high quality of Kolari Vision’s Anti-Reflective exterior infrared filters. Whereas these filters are priced greater than these from different producers, they’re extraordinarily well-made and, with the right care, ought to final you a lifetime.

My because of Ilija of Kolari Vision for supplying these filters.