infrared in medium format

<p>Hello All<br>

I want to experiment with infrared film on a medium format camera (hasselblad 503cw) for a school project. I'm planning on buying Rollei/AGFA Infrared 120 from B&H. I'm very new to infrared photography so I'm wondering if i need a filter for my hasselblad in order to shoot an infrared picture? Can i go on without a filter for my lens? <br>

Thanks in advance</p>

<p>Infrared film is somewhat sensitive to visible light too. You get the best results if you use a filter which blocks visible light and UV. I use a B+W 092C.</p>

<p>http://www.bhphotovideo.com/c/search?atclk=Brand_B%2bW&ci=131&N=4026728332+4291599900&Ntt=infrared</p>

<p>You can use Rollei IR 400 films without filter with very good B & W negatives @ iso 400, for infrared, a filter is needed . . The R72 would be a good choice to start IMO, not too expensive and rated @ iso 12 I 've found it interesting. </p>

<p>I was in your same situation awhile back and did a lot of research. I ended up getting the Hoya R72 as well and it is excellent.</p>

<p>Keep in mind that its hard to frame a shot with an SLR with a visible light blocking filter in front of the lens. For unknown reasons nobody makes IR filters with a hinged holder to flap them into place just before the shot. So you'll need a tripod and maybe an additional sports finder if you plan to shoot slightly moving subjects. - IR film needs IR filters for real IR photography an alternative to putting those in front of your lens would be using infrared light sources there used to be coated flash bulbs maybe there are filters to be put in front of your strobes? - some folks experimented with tabletop photography lit by medical red lights (meant to cure muscular aching / rheumatism & such at home). There might be more sources of photographically usuable IR light available. - Ldedicated LEDs to light the view of active night vision systems come to mind. Bottom line: It does not matter where you cut out the visible light. in broad daylight there is no way around using a filter on your lens if you set up lights in the dark things are different.</p>

<p>Thank you all.<br>

Just wondering. What filter size do i need to get? I can't find the filter size on the lens. <br>

I have the 503 CW with a Carl Zeiss Planar 2.8/80 T*. </p>

<p>i wasn't able to find it online, any thoughts? </p>

<p>Series 60 bayonet mount ...<br>

<a href="http://lenses.zeiss.com/content/dam/Photography/new/pdf/en/downloadcenter/hasselblad_cf/planar2-8_80mm_cf_102165_e.pdf">http://lenses.zeiss.com/content/dam/Photography/new/pdf/en/downloadcenter/hasselblad_cf/planar2-8_80mm_cf_102165_e.pdf</a><br>

<a href="http://www.zeiss.com/C12567A8003B8B6F/EmbedTitelIntern/Planar2.8_80mm_CFE_102211_e/$File/Planar2.8_80mm_CFE_102211_e.pdf">http://www.zeiss.com/C12567A8003B8B6F/EmbedTitelIntern/Planar2.8_80mm_CFE_102211_e/$File/Planar2.8_80mm_CFE_102211_e.pdf</a></p>

 

Which means an adapter is needed to mount thread-mount filters, I assume? I'm not aware of any bayonet-mount infrared filters, at least not being sold new.

<p>Older IR films were blue (and IR) sensitive, and used a red filter. (and that was rangefinder days!)<br>

More recent ones have enough visible sensitivity that you should block pretty much all visible, though that complicates SLR use.</p>