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Reason of technical issue

Community Beginner ,
Sep 15, 2021 Sep 15, 2021

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It was refuse but not sure the clear reason and what to do to improve.

Can I get some advice what to edit or improve more detail?

 

Thank you

Regards

 

技術的問題で却下された理由が不明です。

改善したいのでアドバイスをもらえないでしょうか。

よろしくお願いいたします。

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correct answers 2 Correct answers

Adobe Community Professional , Sep 15, 2021 Sep 15, 2021
You have not achieved sharp focus on the largest light shade.

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Participant , Sep 15, 2021 Sep 15, 2021
None of the photo is in focus. The closest, largest lantern should be in sharp focus. Also, the large lantern has what appear to be compression artifacts. There is also noise in the photo, and the highlights are all blown. You will find it difficult to do stock photography with a phone, but possible under ideal condifions if your phone has a very good camera. I think it will be impossible to do any sort of night photography with a cell phone and have the photos accepted.

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Adobe Community Professional ,
Sep 15, 2021 Sep 15, 2021

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You have not achieved sharp focus on the largest light shade.

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Community Beginner ,
Sep 15, 2021 Sep 15, 2021

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Thanks for your advice.

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Participant ,
Sep 15, 2021 Sep 15, 2021

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None of the photo is in focus. The closest, largest lantern should be in sharp focus.

 

Also, the large lantern has what appear to be compression artifacts. There is also noise in the photo, and the highlights are all blown.

 

You will find it difficult to do stock photography with a phone, but possible under ideal condifions if your phone has a very good camera. I think it will be impossible to do any sort of night photography with a cell phone and have the photos accepted.

 

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Community Beginner ,
Sep 15, 2021 Sep 15, 2021

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Thanks for your reply. I thought my phone was good to take night view

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Adobe Community Professional ,
Sep 15, 2021 Sep 15, 2021

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A mobile phone, nor any other type of point and shoot camera that does not permit you to control any of the settings, is going to provide satisfactory results for night photography.  You need to control shutter speed, aperture and ISO in order to get optimum results under such difficult lighting conditions. 

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Explorer ,
Sep 15, 2021 Sep 15, 2021

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Hello

Following on from those replies, there is quite a useful free app called Open Camera that you can download onto your phone which gives you some control of the settings. If you want to find out more, there's a good video tutorial on how to use it from this link: https://www.youtube.com/watch?v=Sa7YsVB0F_s

The tutorial mainily talks about using the app for shooting video but I've found it really useful for photos too. I'm not sure if it would be good enough for night shots but I guess it could help.

Learn how to create better videos using Android Camera Apps in this complete Open Camera App tutorial! *** FREE Guide to Filming Amazing Videos on Smartphone...

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Community Beginner ,
Sep 15, 2021 Sep 15, 2021

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Thank you for sharing the app let me check and study.

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Advisor ,
Sep 15, 2021 Sep 15, 2021

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こんにちは

 

Stockフォトで購入する方は趣味ではなくお仕事に活用される方々なのでそれを意識した画作りが必要です。

 

この写真はP10Plusで撮影のようですね。

Leicaの良いレンズを積んだ機種なのですがスマホならではの弱点がモロに出ているようです。

 

・まず一番の問題点は解像度が72dpiで圧倒的に不足しています

Stockフォトですので購入された方が出版物や商品パッケージでの印刷利用も考えられます。

72dpiではWebページで小さく表示する事には使用できますが印刷物での利用には耐えられません。

 

・他の方からも指摘されていますがメイン被写体にピントが来ていません

 

・F1.8 1/33秒での撮影ですがISO-800での撮影で粒状感が出ています

私はこのシチュエーションでは三脚を使ってISO-100~200、F1.2~1.4の単焦点レンズでギリギリ被写体ブレをしないシャッタースピードを狙って撮影します。

 

スマホ撮影の弱点としては

・マニュアルでのピント合わせや、露出のコントロールが難しい事

 (出来なくは無いんですが調整してる間にシャッターチャンスを逃す事が多いんです…)

・物理的に大きな撮像素子を搭載出来ないので光を多く取り込めずダイナミックレンジが狭いので

 夜景のような明暗差が大きな被写体では白飛び、黒潰れがおきやすい。

 このWebページがわかりやすく解説してくれています↓

 https://www.photografan.com/basic-knowledge/compare-camera-sensor-sizes/

 

上手く使えばスマホでも商品になる写真は撮影出来ますがそれなりに大変だと思った方が良いです。

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Community Beginner ,
Sep 15, 2021 Sep 15, 2021

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詳細な返信ありがとうございました。

おっしゃる通りP10plusです。

この状態でピントが合っていないというのが、衝撃でした。やはり素人の写真ということですね。

 

静止した状態の夜景などはマニュアルの撮影で幾分か綺麗にとれるようになりましたが、動くものがある状態で夜景を撮影するのはやはりどんなに進歩してもスマホには限界があるのですね。

 

勉強になります。

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Adobe Community Professional ,
Sep 16, 2021 Sep 16, 2021

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Using a smartphone for night shots is fine for Instagram and Social Media, but not for stock photography (generally speaking). The sensor size is small, and therefore noise becomes an issue in low light.

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Community Beginner ,
Sep 16, 2021 Sep 16, 2021

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Thank you for your comment.

Understand that phone phote is not suitable for stock photography especialy for night shot.

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