Dang. Such a thorough review. Well done! Just posted a review of this lens myself and shot a little horror sequence with it. I was really impressed with the image quality. Will definitely be buying more Irix.
@Raevenswood
2 жыл бұрын
does anyone really care about corner to corner clinical sharpness in a cine lens? It's not really a thing we worry about is it? It seems like some of the tests you are running would be more important to a stills photographer than a videographer. Stopping down a bit to get better contrast is relevant but I can't see a reason to stop down to T/4 or T8 to get clinical edge to edge sharpness, it's just not practical or necessary. Motion blur with video makes the quest for razor sharpness pretty useless.
@IddoGenuth
2 жыл бұрын
It's a valid point. I agree that center sharpness is probably more important for video (although there might be specific applications where you will want corner to corner sharpness - when fixed on a tripod probably). We test all of the lenses we get in the same way - it took us years to come up with the exact methodology and we are still refining some of the aspects. For example, I really liked the way the breathing test we did on this one but I still think that there might be a better way to demonstrate this. The CA test is great, the Vignette is good, flare is OK, sharpness is fine although testing anything beyond 90mm requires some logistics on our part (and with very fast tele lenses there is always a risk that one side of the image will be out of focus - which is a huge problem we could never solve), close up sharpness is something that we are working on and next year we will complete our close up test rig with some new tiny targets (it took forever to find the right parts). Things that are difficult to measure in the lab using the gear that we have in a repeatable way are image stabilization (we looked at all sorts of vibrating surfaces - I don't think that they really replicate hand movements well) and to some degree AF (we do some pretty simple test and we even start testing low light AF but to be honest it is more of a subjective test after we use the lens because AF can fail in all sorts of conditions - for example, the Sigma 24-70mm that we tested last year - the review never published for other reasons - had fast but not accurate enough AF on moving subjects - this is very hard to test in a lab).
@geraldadamson
2 жыл бұрын
Solid review covering all the bases. Better sharpness and contrast below T2.8 would be ideal, but at this price? I'm sold on adding this to my cine lens collection. Thank you!
@sunnymahour1263
2 жыл бұрын
Thanks for the detailed review specially sharpness and contrast, owned irix 45, need lenses 30-35 which can be sharp in full open t1.5 up to 2500 usd
@FotodioxInc
2 жыл бұрын
Nice review!
@GhostStealth590
Жыл бұрын
What alan wrench do I need to remove the 1/4 foot? I have alan wrenches out the ass but none as small as what is needed for the foot. It's definitely an inconvenience when fitting it on any rig just because of that foot.
@LensVid
Жыл бұрын
M... good question I never tried to actually remove it. I'll try and remember to test it in the studio tomorrow.
@westwolf117
2 жыл бұрын
I'm really impressed with these lenses from the research I've done. Outstanding sharpness and bokeh at T2 is more than enough for cinematography purposes. The only thing holding me back from buying their whole set is not knowing if they will fill out the longer range after 45mm.
@IddoGenuth
2 жыл бұрын
I don't have specific info but based on what they have done so far - I am pretty sure they will.
@westwolf117
2 жыл бұрын
I think a 21mm and 65mm would be fantastic future additions and keep with their "differentness"
@stu9000
2 жыл бұрын
People in the know indicate that they will
@IddoGenuth
2 жыл бұрын
@@stu9000 Indeed a new lens announcement in this series is imminent. Hopefully, we can review it as well later this year.
Пікірлер: 17