Full Spectrum M and a Hoya R72 around town.

[VideoJohn]

So far, so great...sorta. As an AV geek, after you've had that medium format taste....it doesn't feel the same working with smaller formats. Still, can't complain about the WOW factor this thing can give me. Shame I can't figure out how to get money outta it. . Does anyone have any success submitting IRs to adobe stock?  

Since I'm still kinda confused/unaware/uneducated about all these filters out there....any recommendations to go with the Hoya R72? Preferably a filter that doesn't cost over $50 in 62-77mm range.

 

[colinbm]

All good here.
CPL's can give a boost.
But you are leaving yourself short by restricting yourself !

[Doug A]

Stunning photos. There are so many colors. Not sure what other filters to recommend. I found recently that a 056 orange filter gives potent images, without any processing. I will be experimenting more with the Pentax 15mm FF lens with the built-in filters. Love the flexibility of full spectrum cameras.

 

Thanks for.sharing,

Doug A

[ulf]

In general long pass filters cutting away gradually more and more of the visual gives interesting colours. 
The orange filter Doug mentions above is just the first in a series of interesting alternatives.

That cuts around 550nm.

A 590nm filter can be used for a Goldie effect and so on.

Google on IR Goldie to see the process.

 

Further and further up in the spectrum you gett less colours, until images are black and white. For that I use a 850nm filter.

I think even a 830nm filter will work for that with a slightly faster exposure time, but I am not sure 

 

I have had good experience with filters bought from Tangsinuo in China.

The filters they sell have a low price, but good quality.

They have web-shops both on Aliexpress and eBay:
https://tangsinuo.aliexpress.com/store/group/IR-Pass-Filters/4314008_513398482.html?spm=a2g0o.store_pc_allProduct.0.0.58f9400c2XCaYt

https://www.ebay.com/str/tangsinuo

 

A similar shop that I have not tried , with a less good feedback rating is this:

https://ntforic.aliexpress.com/store/4394028?spm=a2g0s.8937474.0.0.3bb22e0e0lmZAL

I think they are OK too.

 

There are more expensive filters in the visual range from B+W and you can buy branded Chinese filters that are reasonable in price from Zomei.

They can be found on Amazon if you search for Zomei IR filter.

The 950nm filter is IMHO rather meaningless except in very special filter combinations.

The images looks like from the 850nm filter, but the exposure time is much longer.

If you want an effect with monochrome IR and including an ND-filter that is what you get. 

 

Then you can also get other types of filters that can be used directly or in combination with a filter that reduces the IR content a bit.

The KG-series do that.

Here are some tests I did a long time ago:

https://www.ultravioletphotography.com/content/index.php?/topic/3318-kg3-16mm-stacked-with-diverse-filters/#comment-27977

 

I hope this information can be of some help.

 

 

[Doug A]

4 hours ago, ulf said:

In general long pass filters cutting away gradually more and more of the visual gives interesting colours. 
The orange filter Doug mentions above is just the first in a series of interesting alternatives.

That cuts around 550nm.

A 590nm filter can be used for a Goldie effect and so on.

Google on IR Goldie to see the process.

 

Further and further up in the spectrum you gett less colours, until images are black and white. For that I use a 850nm filter.

I think even a 830nm filter will work for that with a slightly faster exposure time, but I am not sure 

 

I have had good experience with filters bought from Tangsinuo in China.

The filters they sell have a low price, but good quality.

They have web-shops both on Aliexpress and eBay:
https://tangsinuo.aliexpress.com/store/group/IR-Pass-Filters/4314008_513398482.html?spm=a2g0o.store_pc_allProduct.0.0.58f9400c2XCaYt

https://www.ebay.com/str/tangsinuo

 

A similar shop that I have not tried , with a less good feedback rating is this:

https://ntforic.aliexpress.com/store/4394028?spm=a2g0s.8937474.0.0.3bb22e0e0lmZAL

I think they are OK too.

 

There are more expensive filters in the visual range from B+W and you can buy branded Chinese fukters that are reasonable in price from Zomei.

They can be found on Amazon if you search for Zomei IR filter.

The 950nm filter is IMHO rather meaningless except in very special filter combinations.

The images looks like from the 850nm filter, but the exposure time is much longer.

If you want an effect with monochrome IR and including an ND-filter that is what you get. 

 

Then you can also get other types of filters that can be used directly or in combination with a filter that reduces the IR content a bit.

The KG-series do that.

Here are some tests I did a long time ago:

https://www.ultravioletphotography.com/content/index.php?/topic/3318-kg3-16mm-stacked-with-diverse-filters/#comment-27977

 

I hope this information can be of some help.

 

 

Great post Ulf. Appreciate having all this info in one spot. The orange filter is exciting since the FF Pentax 15mm has a front element resembling a softball. It doesn't take filters but has a built in filter turret. So a lens I never thought would be useful for IR suddenly is :). 

 

Thanks,

Doug A

[photoni]

@ulf

 

honestly I don't like false colors I prefer B&W, but I found funny an old light green filter that I used with the camera with B&W film for landscape photos.

Toni

 

[ulf]

Green filters can be fun to experiment with, but the result for different green filters on a FS-converted camera will vary a lot.

The reason for that is that some green filters do block the red parts of the spectrum well, others don't do that.

 

Many of them also have a transmission deeply into IR.

That can cause more chromatic aberration due to the lenses focal shift in IR.

A KG-3 filter can lessen that effect when stacked together with the green filter.

[lukaszgryglicki]

Actually, adding just green to IR seems very intyeresting, because most IR records mainly in red & blue giving pink - so adding green here (in theory) would make very interesting photos sooc.