Lenses I am trying to use for UV on a Canon EOS 600D full spectrum and Baader U

I need a reference place to store my feedback on various lenses I have tried for UV photography.
I do not have access to any kind of spectrum analysis so this is my real world playing about.

My setup: Canon EOS 600D (Canon EOS REBEL T3i) with full spectrum modification by Ehab Eassa  (Eassa on eBay) Using a Quartz Spectrosil replacement for the removed IR/UV block filter.

Microlenses still in place. (Removing these renders the camera incapable of colour but improves contrast. It turns it into a UV only camera, not full spectrum).

Sensor cleaning mechanism removed.

Pros of this camera : Appears that the Sensor is UV sensitive and the fold out display with Live view is excellent.
Cons of this camera : cheap and nasty plastic design unlike the more professional series. (also a pro, as you can modify and obtain the camera cheaply).

Full spectrum Canon camera setup for UV (UV Gear)

You can see some of my UV photos here https://www.flickr.com/photos/mickyj_photos/sets/72157631805070468/

Canon Lenses

Canon EF L series 24-70 mm with step up/down rings and a BaaderU filter (1.25″) on the end – needs a high ISO and long exposure time. Not suitable for anything that moves. Not enough light for Autofocus to work. Nice images but frustrating to use. Click through to the photos for more details.

Canon L with Baader U (UV)

Baader U on Standard Lens

 

Canon EF 50,, 1.8 mm lens with step down rings and Baader U filter. ISO 800 and 1/13 sec exposure works well. Might be good for Video. Autofocus in UV range works. Native EF mount is a bonus. Cheap nifty 50 lens. Well worth playing with as it causes the least frustration and messing about. It is cheap so within reach of most people. Works well showing sunscreen response, not as good showing flower patterns. I need to do a video with this one.

UV Suncream Test (UV)

Canon FD 50mm 1.l4 with adaptor for EF mount – not yet tried

E.Rokker

Minolta E.Rokkor 50mm f4.5 Enlarging Lenses, M39 Mount – No idea just yet. Just ordered this and will know soon.

Minolta E.Rokkor 75mm f4.5 Enlarging Lenses, M39 Mount – No idea just yet. Just ordered this and will know soon.

Helios
Helios 44-2 2/58 Russian USSR lens M42  Zenit 1979 – preset. This lens is a preset lens which gives it two aperture rings. An Aperture lock ring and a smooth (no click) manual aperture ring. Great for Video. Yet to try UV.

Normal spectrum photo

Helios Lens Experiment 1 (100% crop)

 

Nikon EL Nikkor

Nikon 1:4 50mm El-Nikkor Enlarger Lens f=50 – works ok on UV. Need to be close to the subject. Need a M39 Screw Mount to EF adaptor and I use a Bellows to get focus. Step up/down rings to fit Baader U. 75mm is better.
Nikon EL-Nikkor 75mm f/4 Enlarging Lens – works ok on UV. Need to be close to the subject. Need a M39 Screw Mount to EF adaptor and I use a Bellows to get focus. Step up/down rings to fit Baader U. Most of my UV photos in the flickr set that involve flowers were done with this lens.

NIKON EL-NIKKOR 80MM 5.6 PROFESSIONAL ENLARGER LENS – works ok on UV. Need to be close to the subject. Need a M39 Screw Mount to EF adaptor and I use a Bellows to get focus. Step up/down rings to fit Baader U. 75 mm is better.

Optomax (Pentax)

Optomax 35mm f/3.5 – You have to stand too far from the subject, the UV response is bad and focus is hard to achieve. It is a wider lens than my EL Nikkor so it does have it’s place.

Flowers in UV (UV)

 

Jena (Zeiss)

Jena Aus 135 (Zebra) (see the Flickr image for more information)

UV Lens test - Jena Aus 135 (Zebra)

Jena Carl zeiss sonnar 4 135 (see the Flickr image for more information)

UV Tests, Jena Carl zeiss sonnar 4 135

Jena Carl zeiss sonnar 4 135 (see the Flickr image for more information)

UV Tests, Jena Carl zeiss sonnar 4 135

Jena DDR Aus T 2.8 -50 (see the Flickr image for more information)

UV Lens test, Jena DDR Aus T 2.8 -50

UV Lens test, Jena DDR Aus T 2.8 -50

Jena flektogon 2.8 – 35 (see the Flickr image for more information)

UV test lens, Jena flektogon 2.8 - 35

UV test lens, Jena flektogon 2.8 - 35

 

 

 

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Sun damage, sunscreen, UV and photos

I have been playing with UV photography on a Full spectrum Canon EOS 600D (Canon EOS REBEL T3i) for some time. I wanted to see the UV markings on flowers that some animals / insects etc can see.

I discovered a world where paint patch ups, metal alloys and many other things also look unique and different when viewed in UV.

Early on I tried a sunscreen experiment where I painted half of a subjects face and then filmed the person, hoping to see the blocked UV. I was unimpressed. It caused a greyish hue or cast over the face, but nothing with any real impact.

 

Then, a little later,   Thomas leveritt posted a Sunscreen video on Youtube. I have been trying to replicate it ever since.

I figured that Thomas leveritt may have had more than a full spectrum conversion done to his camera. Maybe they also removed the Micro filters ? Perhaps he is using a quartz lens ?

Finally, I have similar results. Thanks to Antoni Łoskot for pushing me hard to find a solution. It turns out that with a Canon 50 mm 1.8 EF canon lens, I can get the same results.

UV Suncream Test (UV)

My understanding with UV has been turned on it’s head or maybe, Canon cheap lenses are *real* cheap.

I have been acquiring old lenses. lenses that are manual focus, with as few glass elements as able, before UV blocking multi coatings came into fashion. Lenses that need EF adaptors and limited to a specific focal range. I have then been adjusting the lens to move focus into the UV spectrum, from the Visual spectrum. Tedious and painful.

All of this so I can reduce ISO to 400 and time to 1/25 sec. But .. am I looking at this wrong ?

Maybe with the sunscreen video, you can have a higher ISO and slow shutter time as the subject is moving and you do not notice ? Maybe I am looking for a UV response in the spectrum too low ? Does sunscreen react at a higher wave length ?

so, using a Canon EF 50mm 1.8 lens with a 52 mm to 1.25 ” adaptor and Baader U filter, I get the results I need.

1/13 sec and ISO 800 looks a little blurry for a still shot but the Sunscreen is a black colour, not grey. This is what I want. Finally, the results I wanted !!!

I will have to test further but maybe my EL Nikkor lenses will work better for flowers ?

I have to use my EL nikkor with a bellows to get focus. With the canon EOS and EF lens config, I get Auto focus in the UV range !!! Awesome. Less fiddly.

I have tried a Canon L 24-70 mm and I needed ISO 3200 at 3-4 seconds to get any UV response. Maybe the difference of L professional series to “kit” cheap lens ?

Regardless, I am happy it works.

My Full spectrum mod was done by eeassa (Ehab) on eBay. I love it !!!

 

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Ham radio – Baofeng UV-5R

My experience so far with a Baofeng UV-5R.

I have a Baofeng UV-5R, Baofeng USB programming cable, handheld MIC and speaker.
It also has an ear + MIC cheap headset.

The first thing I realised is that the manual does not tell you everything.
For starters, to get the Firmware version you hold down 3 and power on. There are many more secrets.

Many of my answers are found on http://www.miklor.com/

So, this all came with a CD disk of drivers. Throw it away. Not only are there no instructions, confusing folder names on it but it is in Chinese.

The next hard lesson …. the handheld MIC/Speaker and USB cable do not work. It turns out they do not mate with the handset correctly.
This is a well known issue so the next step was to use a packing knife and whittle down the plastic connector end so that it plugs in better. (Glad it is a cheap radio as I am already voiding my warranty).

Now I install the Beofeng VIP programming software and get the error “Fail connect with transceiver”. This is also a well known issue caused by 2 things.

1) The wrong USB to Serial drivers for the programming cable (Not my issue this time)
2) You need the exact correct software for the firmware on the unit.

I had to download BF5R_VIP_v120725_BFB291_ENG(VB6).zip (You can find this on Google search).
I am using a Baofeng UV-5R Firmware BFB297, N5R-213.  (I see many others online with this firmware are looking to solve these same issues).

I also had to decrease the Serial speed from 9600 to 1200 bps (In the com port settings in device manager).

Using this software I proved the radio and programming cable are all working. Using any other Baofeng software with this radio failed to work. Interestingly Chirp worked well, straight away, no modifications.

So now I need to actally play with the radio. So if others out there have the same problems, I hope that this will help you realise
1) Almost everyone that has bought these has had to whittle down the plugs
2) Almost everyone has had to seek the right software

your unit is not likely faulty.

You just have to get everything right for it to work :)

 

VK5FQDN

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Be careful with Telstra Business Bundle plans (e.g. the DOT plan)

We have found that we unable to install SonicWALL firewalls or substitute modems using the Telstra Broadband plan known as DOT.
(Refer the plans http://www.telstra.com.au/small-business/bundles/dot/ (Digital Office technology – DOT) and clients are a Telstra.direct.net broadband client.)

Telstra provided a Cisco SPA504G VOIP handset, Netgear DEVG2020 (ADSL modem, router, PSTN, Wireless etc.) with most of the settings blocked from view. (Customised firmware).

The client does not need the Cisco handset but needs a SonicWALL to SonicWALL VPN setup. I could add a Bridge in place of the DEVG2020 and get line sync (13mbit/1mbit) and I could set LLC PVC 8/35 and PPPOE on the SonicWALL but not raise the PPOE connection.

Basically Telstra have admitted (after 3 months and after many phone conversations) that whilst the connection is PPPOE and should work, it would not work with any other router or modem as it is bound to their provided Telstra hardware to make the Cisco phone handset work.

I asked them if we could revert the account back to normal DSL and remove the Cisco handset and they said changing the plan amounted to breaking the 24 month contract.

So, if you want normal DSL or to use your own equipment, don’t get this plan.

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Experimenting with turning my Canon EOS 5D camera into a wireless Access Point

I am tired of pulling out CF memory cards, loading them up in a reader and dumping down files to my PC.
I have a WFT wireless adaptor for it but it is clumsy and uses FTP to upload files to an FTP server.

It’s just not simple and something that words without prep time.

So, for under $40 (Aus), I bought a Toshiba FlashAir 32 Gb b/g/n SD card and an Extreme CF adaptor (SD to CF).
I setup the FlashAir as an Access point and it works really well in the CF adaptor in my older Canon EOS 5D.
It draws it’s power from the camera and the transmittion speed on N band is great.

I suddenly have a very compact wireless solution for my Canon EOS.

Now comes my next issue.

There are tools on Android and iOS to access the files and do bulk downloads. The only way to do it in Windows is in a web browser, one file at a time.

I was then pleasantly surprised to find that this is because Toshiba have opened up the windows space for developers and published the API’s.
Checking out the tools at https://www.flashair-developers.com/en/about/showcase/

I found an awesome tool called snowy.

http://emoacht.github.io/SnowyImageCopy/index.html


So far I am very happy with this wifi card, especially on Wifi N band.
I have turned my Canon EOS 5D into an Access Point and it has wifi passthrough so my normal Wifi can stay on (I turn if off when using Snowy).

I can share my files with other peoples devices easily and I can do a bulk download.

Awesome !

 

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New Virus in the wild ? (5 Sept 2014)

Whilst using Facebook, followed a link to an external Top 10 “type” photo page and up came a message full screen.

This was a solid white screen to all extremities of the screen. No task bar was showing. Task manager would not work. It was modal.

There was a single line of words in the middle of the screen:

“Windows Locked! Pay WMZ”.

or

“Windows locked! Your ID is 0xe1c88c76. Send 250 WMZ to ZXXXXXXXXXX and follow instructions.”

windows locked

No amount of Googling this has turned anything up.

Fearing the worst, I had the machines removed from the network immediately.

This has symptoms of a Cryptolocker or Cryptowall type malware but may actually be broken or not fully activated. I have had people look over their files on the network shares and nothing yet appears to be damaged, altered or encrypted.

Looking in the eventlog of the machine and working backwards from when the power was removed I have located a scheduled task that has been injected into the system.

The path to the executable currently contains nothing. The Trend Micro and other security tools have not yet found anything.

I logged all files on the machine that were changed at about the infection time (including prefetch files) and reviewed the internet history and registry entries.

(I note that this file at the same time, looks suspicious \Windows\Installer\{E8863755-AD45-4ABE-87DF-3C4AD785A364}\msiexec.exe)

I have been able to work out that the file came down via Java.

This is a copy of the task that was created :

<?xml version=”1.0″ encoding=”UTF-16″?>
<Task version=”1.2″ xmlns=”http://schemas.microsoft.com/windows/2004/02/mit/task”>
<RegistrationInfo />
<Triggers>
<LogonTrigger id=”Trigger1″>
<Enabled>true</Enabled>
<UserId>User</UserId>
</LogonTrigger>
</Triggers>
<Settings>
<MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>
<DisallowStartIfOnBatteries>true</DisallowStartIfOnBatteries>
<StopIfGoingOnBatteries>true</StopIfGoingOnBatteries>
<AllowHardTerminate>true</AllowHardTerminate>
<StartWhenAvailable>true</StartWhenAvailable>
<RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>
<IdleSettings>
<Duration>PT10M</Duration>
<WaitTimeout>PT1H</WaitTimeout>
<StopOnIdleEnd>true</StopOnIdleEnd>
<RestartOnIdle>false</RestartOnIdle>
</IdleSettings>
<AllowStartOnDemand>true</AllowStartOnDemand>
<Enabled>true</Enabled>
<Hidden>true</Hidden>
<RunOnlyIfIdle>false</RunOnlyIfIdle>
<WakeToRun>false</WakeToRun>
<ExecutionTimeLimit>PT72H</ExecutionTimeLimit>
<Priority>7</Priority>
</Settings>
<Actions Context=”Author”>
<Exec>
<Command>C:\Users\User\AppData\Roaming\bOMPZQrb\tONjafFL\qnuFfTtR\rdNgawxcA.exe</Command>
</Exec>
</Actions>
<Principals>
<Principal id=”Author”>
<UserId>User</UserId>
<LogonType>InteractiveToken</LogonType>
<RunLevel>LeastPrivilege</RunLevel>
</Principal>
</Principals>
</Task>

I have uploaded the .tmp files from he users Temporary folders into VirusTotal and nothing yet found.

I am also running an undelete tool over   C:\Users\User\AppData\Roaming\bOMPZQrb\tONjafFL\qnuFfTtR\

 

I will keep digging and report back. This does seem to be something new.

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