Câmeras fotográficas: qual a diferença entre full frame e crop?

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São muitas as questões a serem observadas por quem está começando no mundo da fotografia ao escolher sua primeira câmera, não é mesmo? Avaliar as lentes certas, as características das principais máquinas, a resolução máxima oferecida e o custo-benefício são alguns exemplos.

Para acrescentar outra variável nesse mundo de informações, é necessário escolher qual é a melhor opção de sensores: uma câmera full frame ou crop?

Parece grego para você? Relaxe! Vamos apresentar o que significam esses dois termos e mostrar a diferença entre full frame e crop. Boa leitura!

O que são as câmeras full frame?

Quando falamos em “full frame”, estamos nos referindo a uma característica do sensor. Essa é uma das categorias para essa parte do equipamento de acordo com o tamanho dele. As câmeras full frame são aquelas em que o sensor tem o mesmo tamanho de um equipamento analógico 35 mm.

O que são as câmeras cropadas?

As câmeras cropadas, ou “crop”, em compensação, são aquelas que o sensor tenha qualquer tamanho abaixo daquele encontrado em uma máquina 35 mm analógica. Os tipos mais comuns existentes no mercado são os sistemas APS-S e micro 4/3.

Como o próprio nome sugere, o sensor crop é um corte do sensor full frame. É importante ter isso em mente para compreender como se dão as diferenças entre esses dois tipos de câmera.

Qual a diferença entre full frame e crop?

É apenas o tamanho que representa a diferença entre full frame e crop? Não mesmo! Afinal, ela também surte resultados nas imagens que você obtém.

Como falamos acima, o sensor crop é um recorte do full frame. De forma prática, significa que no ato de capturar uma imagem, dentro do mesmo enquadramento, o resultado obtido por uma câmera cropada será um recorte daquela que a outra consegue fazer. Isso tudo considerando que há as mesmas condições: o mesmo enquadramento, jogo de lentes etc.

A distância focal também passa por alterações. Quando falamos em distância focal de uma objetiva, ela é mensurada considerando um sensor padrão 35 mm. O sensor crop, por cortar as bordas do quadro, faz com que a distância focal aumente.

Complicou? Vamos a um exemplo simples e prático.

Uma câmera cropada, com uma lente 50 mm, com sensor APS-C, é igual a 80 mm equivalente a uma full frame. Dessa forma, os resultados podem não sair como esperado, dependendo da objetiva que deseje utilizar.

Como escolher a câmera ideal para seus objetivos?

Cada um dos tipos de sensor tem as suas vantagens e desvantagens, algo que deve ser observado antes de realizar a sua escolha para compra. Por isso, avalie os prós e contras de cada uma delas.

A full frame permite uma maior captura de luz no sensor, até mesmo em ambientes mais escuros. O ISO das câmeras deste modelo também é mais potente, permitindo fotos noturnas com maior qualidade.

Para aqueles que trabalham com a necessidade de quadros maiores (ou uso de grandes angulares), a full frame é uma escolha prioritária, conseguindo uma maior cobertura do quadro.

Já o sensor cropado tem um custo menor, o que pode ser um ótimo ponto para quem está começando. Além disso, devido ao que falamos anteriormente sobre distância focal, esse tipo de sensor pode ser a melhor opção para quem vai trabalhar com cobertura de eventos esportivos e fotojornalismo. Isso porque você poderá ter um efeito “teleobjetiva” com lentes de menor custo.

Sendo assim, não há uma “câmera melhor”. O importante é analisar os prós e contras caso a caso para definir qual das duas opções se adéqua melhor às suas condições e necessidades no momento. Observe o que falamos sobre a diferença entre full frame e crop e faça a sua escolha!

Mesmo depois da leitura deste artigo ainda tem dúvidas sobre qual seria a melhor opção para você? Então entre em contato e um de nossos atendentes auxiliará neste processo!

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