brent_newman Posted January 21 Share Posted January 21 Greetings!I'm weighing on deciding on getting a a7iii or a7iv modded to Visible + H-Alpha filter, a 420nm to 1200nm filter, or go for the gold for full spectrum. Ideally, I want capture more reds for astrophotography and IR for b&w landscapes. Is there a compelling reason why I should not go with full spectrum to achieve both targets? My understanding is that WB correction is straightforward in any of the options. So is there anything else I should consider when making this decision?Thanks! Link to comment Share on other sites More sharing options...
LensBrew Posted January 22 Share Posted January 22 I don't believe you would lose anything going for the full spectrum. But you need to check that the sensor can capture the range you desire. I know some sensors are not full spectrum, which makes the full mod a waste of money. If your's is full sensor, then I would go for full spectrum. Just don't forget to buy filters for shooting normal when you need it. Link to comment Share on other sites More sharing options...
brent_newman Posted February 23 Author Share Posted February 23 I don't believe you would lose anything going for the full spectrum. But you need to check that the sensor can capture the range you desire. I know some sensors are not full spectrum, which makes the full mod a waste of money. If your's is full sensor, then I would go for full spectrum. Just don't forget to buy filters for shooting normal when you need it.My apologies for the delayed response. I thought that all full frame alpha sensors are full spectrum? I am aware that some conversions are not advised as a few bodies can leak IR on to the sensor. Link to comment Share on other sites More sharing options...
DonSmith Posted February 25 Share Posted February 25 Hey Brent, I had two cameras modified - one for full color and another for 720nm. I use the latter all the time as I like the rich B&W look. I used a filter but shutter speed is too slow to stop foliage. Link to comment Share on other sites More sharing options...
LensBrew Posted February 26 Share Posted February 26 My apologies for the delayed response. I thought that all full frame alpha sensors are full spectrum? I am aware that some conversions are not advised as a few bodies can leak IR on to the sensor. I haven't checked all the models, except the ones I personally own. I only made a safe assumption and always advise to check before doing anything.Leaks would happen on older sensors, but the new ones are more robust. But I suggest to check with the company you would like to have modify your cameras. Companies differ with their final results and quality. Link to comment Share on other sites More sharing options...
brent_newman Posted March 1 Author Share Posted March 1 I haven't checked all the models, except the ones I personally own. I only made a safe assumption and always advise to check before doing anything.Leaks would happen on older sensors, but the new ones are more robust. But I suggest to check with the company you would like to have modify your cameras. Companies differ with their final results and quality.When I first looked into this, I noticed that Spencer Camera advised against modding my A7RII as it has a known IR leak. If this wasn't not the case, I definitely would have made the conversion by now, but this has given me the opportunity to think more about what my intentions are and what body would be best. Products Used Alpha 7R II (a7RII)Cameras Link to comment Share on other sites More sharing options...
brent_newman Posted March 1 Author Share Posted March 1 Hey Brent, I had two cameras modified - one for full color and another for 720nm. I use the latter all the time as I like the rich B&W look. I used a filter but shutter speed is too slow to stop foliage.Hi Don,720nm bnw images are beautiful and I would love your input on capturing them using a full spectrum mod with a 720nm filter! Do you think this setup would work well for landscapes? Link to comment Share on other sites More sharing options...
LensBrew Posted March 2 Share Posted March 2 When I first looked into this, I noticed that Spencer Camera advised against modding my A7RII as it has a known IR leak. If this wasn't not the case, I definitely would have made the conversion by now, but this has given me the opportunity to think more about what my intentions are and what body would be best.Spencer's Camera are very good and reliable. I never thought of modifying a high res sensor. If I modified a camera it would be the A7Siii, specifically for astro. Spencer's even have them in stock new.Personally I don't mind loosing the resolution for the low light (energy) capability. Products Used Alpha 7S III (a7SIII)Cameras Link to comment Share on other sites More sharing options...
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